MP Simon Hart has described Wednesday’s horrific terror attack in Westminster as a ‘dramatic’ and ‘traumatic’ experience.

The Carmarthen West and South Pembrokeshire MP was voting in the House of Commons when the atrocity struck.

“It was one of those days that was somewhat bewildering,” the Conservative MP told the Observer yesterday (Thursday).

He continued: “Unless you actually witnessed the events, it was a strange feeling that something was unfolding. It was a very dramatic and traumatic experience and weird being locked in the chamber.

“It was quite difficult to ascertain what was going on. Internet connection in the chamber is difficult, mobile ’phones were running out of battery and the deputy speaker and leader, although giving us updates every 20-30 minutes, didn’t necessarily know what was going on.

“But I can’t fault the huge parliamentary building reaction. There was no panic. Everything was calm, measured and proportionate.”

Mr. Hart luckily escaped witnessing the horrific events which occurred when a single attacker drove a grey Hyundai i40 along a pavement over Westminster Bridge.

Four people died and many more were injured.

The car crashed into railings outside the Houses of Parliament.

The attacker, armed with a knife, ran to Parliament where he was confronted by the police. PC Keith Palmer - who was not armed - was then stabbed and killed.

The attacker was shot dead by armed officers.

Mr. Hart had left his office in Portcullis House, an office building in Westminster, five-10 minutes before the attack.

“I knew there was a vote coming up and had gone over to the chamber early, which I do not normally do,” explained Mr. Hart, who was first made aware of the terror when a colleague told him he had heard gunshots and screaming and there was chaos in the Old Palace Yard.

“The Prime Minister had just voted in front of me and there was a hurry to identify where she was,” continued Mr. Hart.

Adding: “The chamber was locked down, a procedure that has been practised many times and rehearsed on countless occasions.

“There was then an aggressive search of the building by plain clothed police officers in face masks, a very intimidating sight for of course all the right reasons, but to see them storming through to check there was nobody in the building that should not have been there was absolute standard procedure.”

Mr. Hart was subsequently locked in the chamber for over four hours from around 3.10 until 7.30 pm.

“It was pretty crowded, but I have no complaints. The door keepers looked after us all very well and we had updates from the speaker. There was a far bigger problem to resolve than us getting angry.”

Elsewhere on the Westminster estate, Mr. Hart’s office staff were evacuated and moved to a next door building for safety.

When Mr. Hart was allowed to leave the House of Commons, he made his way to his London flat describing the area as ‘a crime scene, chocabloc full of police and helicopters and cordoned off streets.’

Yesterday (Thursday), Mr. Hart’s job as an MP was continuing.

“I am returning to West Wales to attend a big public meeting,” he said.