Hours after the terror attack near the UK Parliament in London on Wednesday, the External Affairs Minister Sushma Swaraj tweeted that no Indian casualty has been reported so far.

The minister said she is in constant touch with the Indian High Commission in London and ensured help to all Indian nationals there.

I am in constant touch with Indian High Commission in London. There is no Indian casualty reported so far. #LondonAttack @HCI_London - Sushma Swaraj (@SushmaSwaraj) March 22, 2017

The Indian High Commission in London has set up a special Public Response Unit for any Indians caught up in the terror attack.

Indian High Commission is there to help all Indian nationals in London. Please note theTelephone no.s : 020 8629 5950 & 020 7632 3035. - Sushma Swaraj (@SushmaSwaraj) March 22, 2017

Sushma Swaraj released two helpline numbers for Indian nationals to seek help from.

At least three people were killed and 20 injured as terror struck the British capital when a man mowed down pedestrians on a bridge and stabbed a police officer outside parliament complex before being shot dead by Scotland Yard officers.

A search is underway to make certain no other attackers are in the area though police believe there was only one attacker.

"We are carrying out a full investigation into the events. Our strength as a city is our ability to stand together. We will do all we can to protect the people of London," added a police officer.

With inputs from PTI