Huge queues have formed along the banks of the River Thames, as people wait to pay their respects to the Queen.

Her lying-in-state will continue 24 hours a day until 06:30 BST on Monday 19 September - the day of the funeral. Here's what you need to know before joining the queue.

Entry to the queue has reopened after it was paused on Friday for seven hours, with a line of about five miles (8km) long currently stretching to Southwark Park in south-east London.

For those already in the queue, the estimated wait time is more than 19-and-a-half hours.

The government has published a live queue tracker for people to follow on YouTube.

People queuing are being warned they will need to stand for many hours with little opportunity to sit down, as the queue is constantly moving.

The maximum length the queue can be is 10 miles - with 6.9 miles from Westminster to Southwark, and a three-mile zigzag queue in Southwark Park.

Check the tracker to see where the back of the queue is.

People should receive coloured wristbands as they join, so they can leave for a drink, or to go to the toilet, and then return.

Those in the queue are asked not to attempt to save a place for someone else, or leave personal items unattended, or put up tents.

Once people get towards the front of the queue, they will pass through Albert Embankment and then be directed across Lambeth Bridge, into Victoria Tower Gardens, towards Parliament.

They will have to go through airport-style security before entering Westminster Hall, inside the Palace of Westminster.

There are more than 500 portable toilets at various points along the route.

Local venues and museums - including the Southbank Centre, the National Theatre, BFI Southbank and Shakespeare's Globe - will stay open for extended hours and in some cases for 24 hours, for people to use their facilities.

Cafes and other local businesses are also expected to open for extended periods.

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People have queued through the night for the chance to pay their respects to the Queen lying in state

The lying-in-state period ends at 06.30 BST on Monday, 19 September, and the queue will close early to ensure as many people as possible can get in. Any decision to close the queue will be posted on government social media accounts.

The queue has step-free access and there is a separate accessible route, for those who need it, beginning at Tate Britain. Timed entry slots will be issued to join a queue along Millbank.

On Friday evening the government said the accessible queue had been paused with no more entry slots available until midday on Saturday.

Step-free access is available to Westminster Hall for those who need it, and guide dogs and other assistance dogs will be allowed. British Sign Language interpreters will also be available.

Visitor assistants in Parliament will guide wheelchair users and any people with mobility issues (and their carers) along a route to access Westminster Hall.

Transport bosses have confirmed extra train services will be running.

Transport for London says the Westminster area of London will be "exceptionally busy". People are being asked to avoid driving into London if possible. Some roads will be closed, especially around Westminster itself, which will disrupt bus services.

Travel providers say the best way to get around central London will be by using London Underground and rail services, although there may be temporary Tube station closures at short notice, along with special queuing arrangements.

Visitors are being advised to plan ahead, check real-time travel information, and consider walking instead wherever possible.

People are also being asked to avoid Green Park Tube station unless they need step-free access.

You don't need a ticket.

There are also a number of rules about what you can take into Westminster Hall, and how visitors should behave - there is further information on the Houses of Parliament website.

People will not need to show formal identification to enter the hall, but airport-style security checks will be in place.

People are advised to check the weather conditions in advance, and dress accordingly.

They are also advised to bring:

There is detailed guidance about what cannot be brought into the hall, which includes:

Any prohibited items will be confiscated and not returned. Police may also conduct security checks along parts of the queue.

Each person is only allowed to take in one small bag with a single opening or zip

There will be a bag-drop facility, but it will have limited capacity, and if you want to use it, you might have to spend extra time waiting for space to become available.

People are asked to respect the dignity of the event, and should remain silent while inside the Palace of Westminster and dress appropriately, Anyone wearing clothes with "political or offensive slogans" will not be allowed in.

Mobile phones and other electrical devices should be turned off or put on silent mode.

Once inside Westminster Hall, the queue will be divided to pass on either side of the catafalque, which is the raised platform where the closed coffin lies.

Visitors are asked to keep moving forward at all times while in line, until they have exited into Parliament Square.

Not inside. Filming, photography and the use of mobile phones or other devices will not be allowed in the security search area or once inside the Palace of Westminster.

There are eight first aid stations run by St John Ambulance along the route. They are at Southwark Park, Potters Fields Park, the Tate Modern, the Southbank Centre, Belvedere Road, Archbishop's Park, Lambeth Palace and Victoria Tower Gardens.

And more than 1,000 volunteers, stewards and police officers will be on hand to help anyone who needs it. Volunteers are from the Scouts, Samaritans, the British Red Cross, First Aid Nursing Yeomanry and the Salvation Army.

There are water stations along the route, and venues and museums will provide refreshments.

A one-minute silence will be held across the UK at 20:00 BST on Sunday 18 September, the night before the Queen's funeral. A two-minute silence will then be observed at the end of the Queen's funeral, at about 11:55 BST on Monday 19 September.

Large numbers of floral tributes have already been placed by the public at royal residences around the UK. The Royal Household has issued guidance on where they can be left:

Many local authorities have set up books of condolence in libraries, town halls and other civic buildings.

You can use this link to find your local authority, then visit its website to find out what might be available near you.

There is an online book of condolence on the Royal Family website which can be accessed by clicking here.

BBC News is also collecting your stories and memories of the Queen for our online tributes page - you can share your special moments with us via this online form.

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