Several pedestrians were injured Saturday after a car collision onto the sidewalk near London's Natural History Museum, according to the city's police.

The motive of the incident is still unknown, and police said at this time they are not treating it as an act of terrorism. British Prime Minister Theresa May is being updated on the incident.

A man was detained at the scene, an area of the city that is popular for locals and tourists. Ambulances and helicopters rushed in following the collision, and the area has been blocked off by police.

A series of terrorist-linked attacks in London this year have involved people driving vehicles into pedestrians.