Forensic investigators work at the site after a car crashed outside the Houses of Parliament in Westminster, London, Britain, August 14, 2018. REUTERS/Henry Nicholls

LONDON (Reuters) - A man who drove a car into London pedestrians outside Britain’s parliament on Tuesday was a British citizen who originally came from another country, security minister Ben Wallace said.

Police arrested the man early on Tuesday after he hit pedestrians and cyclists before ramming his car into barriers in Westminster.

“He’s a British citizen,” Wallace told BBC TV. “He came from another country originally. It’s only being treated at the moment as a terrorist incident and we haven’t yet fully confirmed that.”