Met Police assistant commissioner Neil Basu is providing an update outside New Scotland Yard.

He says the suspect, who is yet to be formally identified, is “not currently cooperating” with officers.

He adds police cordons are “likely to be in place for some time” as the investigation continues.

Basu says there “wasn’t a police car in pursuit of the vehicle” prior to it crashing into a security barrier outside Parliament.

He adds: “I believe it was an ambulance on a completely unrelated call.”

Armed officers are currently dealing with an ongoing incident outside of Parliament.

A vehicle was involved in a collision and armed police quickly deployed to the scene.

The vehicle crashed into a crash barrier that is there to protect the Houses of Parliament.

Met Police have confirmed a number of people have been hurt and the male driver has been arrested

At 0737hrs today, a car was in collision with barriers outside the Houses of Parliament. The male driver of the car was detained by officers at the scene. A number of pedestrians have been injured. Officers remain at the scene. We will issue further info when we have it.

— Metropolitan Police (@metpoliceuk) August 14, 2018

Armed police approached the vehicle after it crashed into barriers.

Police quickly cleared the area and put a cordon in place.

A car has crashed into security barriers outside of Parliament. Armed police responded to the scene and a huge cordon is in place, police told everyone to run pic.twitter.com/LaMoZr4Jm4

— Police Hour (@PoliceHour) August 14, 2018

The nature of the incident is not yet clear.

An eye witness has told Police Hour that he saw the vehicle driving at speed hit the crash barrier, police did not approach the vehicle until specialist officers arrived.

Specialist officers armed forced the door open and then forced everyone back.

The vehicle is in a security slip road entry point that would require a driver to leave their main route. It is very unusual for drivers to enter this part of Westminster pic.twitter.com/WYfolUMc1z

— Police Hour (@PoliceHour) August 14, 2018

Again almost half an hour after the incident police have further extended the cordon.

Police have arrested a man on suspicion of terror offences after two people were injured when a car crashed into security barriers outside parliament.

The silver car is believed to have hit two cyclists before it crashed into security barriers at a checkpoint outside of parliament.

Two people have been treated at the scene and transferred to hospital for treatment.

Police have now confirmed that counter-terror officers are leading the investigation, The driver who is a man in his 20s, wearing a white shirt and a black hooded puffer jacket, was detained at the scene and is now in custody.

Met Police confirmed they were dealing with an ongoing incident, which involved armed officers outside of the Houses of Parliament.

At 0737hrs today, a car was in collision with barriers outside the Houses of Parliament. The male driver of the car was detained by officers at the scene. A number of pedestrians have been injured. Officers remain at the scene. We will issue further info when we have it.

— Metropolitan Police (@metpoliceuk) August 14, 2018

The vehicle crashed into a crash barrier that is there to protect the Houses of Parliament within a security checkpoint.

It would be very unusual for a member of the public to be within this access point, this access point is guarded by armed police and only people on official Parliament business are granted access to this car park.

Unarmed officers held back from the incident this morning while awaiting armed officers to attend, police held the ambulance and fire service back until the situation was deemed safe.

Police quickly cleared the area and put a cordon in place, shouting to passers-by to clear the area. The cordon was quickly extended further and again further until the area of Westminster was placed on lockdown.

A car has crashed into security barriers outside of Parliament. Armed police responded to the scene and a huge cordon is in place, police told everyone to run pic.twitter.com/LaMoZr4Jm4

— Police Hour (@PoliceHour) August 14, 2018

An eye witness has told Police Hour that he saw the vehicle driving at speed hit the crash barrier, police did not approach the vehicle until specialist officers arrived.

Specialist officers armed forced the door open and then forced everyone back.

The vehicle is in a security slip road entry point that would require a driver to leave their main route. It is very unusual for drivers to enter this part of Westminster pic.twitter.com/WYfolUMc1z

— Police Hour (@PoliceHour) August 14, 2018

Armed officers are currently dealing with an ongoing incident outside of Parliament.

A vehicle was involved in a collision and armed police quickly deployed to the scene.

The vehicle crashed into a crash barrier that is there to protect the Houses of Parliament.

Met Police have confirmed a number of people have been hurt and the male driver has been arrested

At 0737hrs today, a car was in collision with barriers outside the Houses of Parliament. The male driver of the car was detained by officers at the scene. A number of pedestrians have been injured. Officers remain at the scene. We will issue further info when we have it.

— Metropolitan Police (@metpoliceuk) August 14, 2018

Armed police approached the vehicle after it crashed into barriers.

Police quickly cleared the area and put a cordon in place.

A car has crashed into security barriers outside of Parliament. Armed police responded to the scene and a huge cordon is in place, police told everyone to run pic.twitter.com/LaMoZr4Jm4

— Police Hour (@PoliceHour) August 14, 2018

The nature of the incident is not yet clear.

An eye witness has told Police Hour that he saw the vehicle driving at speed hit the crash barrier, police did not approach the vehicle until specialist officers arrived.

Specialist officers armed forced the door open and then forced everyone back.

The vehicle is in a security slip road entry point that would require a driver to leave their main route. It is very unusual for drivers to enter this part of Westminster pic.twitter.com/WYfolUMc1z

— Police Hour (@PoliceHour) August 14, 2018

Again almost half an hour after the incident police have further extended the cordon.