Emergency services at the scene outside the Palace of Westminster, London.

Five South Korean tourists were injured in a terror attack outside Britain’s parliament, Seoul’s foreign ministry said Thursday. The tourists – four women and a man in their 50s or 60s – were knocked to the ground by people trying to flee as an assailant mowed down pedestrians in a car, the ministry said.

While four of them suffered relatively light injuries including a fracture, one – a woman in her late 60s – suffered a head injury and was going through surgery, it said. They were being treated in two local hospitals, it added.

The assault began when a car was driven over Westminster Bridge next to London’s parliament building – a major tourist attraction – hitting and injuring several members of the public. Three, including a police officer, were killed in the attack by the assailant who was subsequently shot dead by armed police.

Canada bolsters security

Canada has tightened security, especially on Parliament Hill, after the deadly attack outside parliament in London, an official said Wednesday. Minister of Public Safety Ralph Goodale said Ottawa had taken measures in light of the attack in which least three people were killed and 20 injured when a man mowed down pedestrians with a car then stabbed a police officer outside parliament before being shot dead.

“The appropriate response has been taken by every police and security service in Canada, including those that function on Parliament Hill,” he told a press briefing. “Canadians can be assured that everything that could be done is being done by the appropriate authorities here in Canada,” Goodale stressed.

The threat level, however, had not been raised. It is at moderate, he added. On October 20 and 22, 2014 two self-styled jihadists killed a total of two Canadian military staff in separate strikes; one was in Quebec and one in Ottawa, near parliament.