A man walks past a car that is covered in emergency blankets in this still image from video shot on December 6, 2017, in London.

A man walking past a vehicle that is cover in emergency blanket in this video shot in London, December 6.

This photo of an ambulance is taken by a woman as she walks in front of a car with emergency blankets on December 7, 2017 in London in this image provided by the British Ambulance Service.

A woman walks past an ambulance carrying a patient who was taken to a hospital on December 10, 2017 after a man was struck by a train in London’s Tower Hamlets.

Emergency blankets are pictured next to a car on December 9, 2017 as people prepare to travel to the Houses of Parliament to protest against the government’s plan to impose a blanket ban on trains.

Baggage trolleys in London were filled with emergency clothing after a deadly collision involving a train near Parliament on December 3, 2017.

In this still from video taken in London on December 4, 2017 the driver of a white Audi Q7 was killed by a bus and another man was injured when a bus collided with the back of the bus.

Two men are pictured at a bus stop after a crash on December 8, 2017 near Parliament in London where a bus was hit by a van and struck multiple pedestrians.

Three men and a woman are pictured in this photo taken on December 5, 2017 at a train station in London after a van hit pedestrians.

The driver of the van who was killed has been named as Jeremy Mardis, 29, a father-of-three from Oxfordshire, who was studying to become a GP.

He is believed to have been driving the van.

The crash is the first of its kind in Britain and has drawn attention to the need for safety measures in London and other cities, including the UK.

Police officers stand guard at a station near Parliament during a lockdown on December 1, 2017 to enforce the country’s ban on the transport of people without valid tickets.

More than 100 people were injured in a crash in the early hours of December 6 that killed a woman and seriously injured several people in London during the height of the winter holiday season.

Passengers sit in the carriage of a tram that was hit and killed by an oncoming train on December 2, 2017 on the M5 in London.(Getty Images: Chris Ratcliffe) A man sits on a bus that was damaged by a car as police closed roads in the London borough of Islington, west London, on December 12, 2017.(AP: Chris Peck) Inspectors from the Metropolitan Police and Transport for London inspect a section of the M25 in London as part of a planned clampdown on the sale of goods, including emergency supplies and emergency food, on Christmas Eve, 2021.(Reuters: Ben Pruchnie)A man walks in the street during a demonstration in central London in solidarity with those affected by the Paris attacks on December 21, 2017(AP: Andrew Winning)A woman holds a banner reading ‘We’re not afraid to die’ during a protest against anti-Islamism protests in central Paris, France, on November 25, 2018.(AP Photo: Fabrice Coffrini)A protester holds a sign reading ‘This is our future, we want to live in it’ during an anti-terrorism demonstration in the city of Lyon, in France, November 25 (AFP Photo/Fabrice Coffreini)In this photo provided by British Transport Police (BTP) police officers walk past a white ambulance in central central London on November 24, 2018.

Britain’s Home Secretary Amber Rudd announced on Tuesday that the government would begin enforcing the countrys blanket ban in the capital, following a series of terror attacks.

London’s Metropolitan Police said it was monitoring the situation.

There was no immediate claim of responsibility for the attack on Westminster Bridge, which left five people dead and dozens injured.