Long queues are forming at COVID vaccination centres and there are reports of the NHS booking site consistently crashing as people rush to get their booster jabs ahead of Christmas.There are prolonged lines outside vaccination centres as people wait to get their booster shots.One line at St Thomas' Hospital in main London snakes around several streets and the back of the queue is on Westminster Bridge.

From the Library in @UKParliament fantastic to see such a long queue for vaccinations at St Thomas' Hospital!

I would wander throughout and join myself however my booster would not be registered as 2 different systems for Scotland and England. Reserving mine at 1000 though!.Individuals near the front say they've been waiting around two hours.

There are also issues with the NHS website, which people say has actually been consistently crashing as they attempted to schedule their booster jabs.Glitches preventing people from reserving boosters - live updates

One mistake message said the NHS website was "currently experiencing technical difficulties".Others reported being stuck in a line while trying to schedule their booster through the NHS site, with the warning: "Lots of people are trying to book a visit at the minute."

The COVID vaccine reserving service is presently facing extremely high need so is operating a queueing system.

For users aged 18-29, please understand that booking opens on Wednesday 15 Dec.For all others experiencing waits, we would encourage attempting again later on today or tomorrow. -- NHS (@NHSuk) December 13, 2021

The NHS in England likewise recommended people attempting to reserve a booster to try once again in the future Monday or on Tuesday as people faced problems.In a tweet, the health service said: "The Covid vaccine reserving service is currently facing extremely high demand so is running a queuing system.

"For users aged 18-29, please be aware that booking opens on Wednesday 15 Dec."For all others experiencing waits, we would advise trying again later today or tomorrow."Last night, the PM launched a "national mission" called Omicron Emergency Boost.

This morning, Health Secretary Sajid Javid advised people to get their booster jab as quickly as possible, cautioning that "2 doses are inadequate, but 3 dosages provide exceptional defense against symptomatic infection".

He stated the UK is broadening its booster programme "to a level we've never ever seen prior to".

It suggests there will be more vaccination centres, and they will be open seven days a week for at least 12 hours a day, with some remaining open for 24 hours, Mr Javid stated.