The latest information on the embassy's website warns Chinese nationals in Britain to avoid going to crowded places and going out alone at night.

Five people were killed and around 40 injured in Wednesday's London terrorist attack which British Prime Minister Theresa May condemned as "sick and depraved."

Seven of the injured remained in critical condition, according to London police authorities.

In the latest development, seven people were arrested following the raids. But police declined to say whether the raids were connected to the Westminster attack.