A POLICE officer riding on a motorcycle in Canadian Prime Minister Justin Trudeau’s motorcade and two other people were injured in a crash in California on Friday.

Mr Trudeau’s vehicle was not involved in the collision, an ABC affiliate reported.

According to the New York Post, the incident occurred in Simi Valley, California, about 40 miles northwest of Los Angeles, after Trudeau left the Ronald Reagan Presidential Library and Museum where he spoke on relations between the United States and Canada, ABC 7 in Los Angeles reported.

The collision happened about four miles from the library when the driver of a Toyota Highlander turned left in front of the motorcade.

The driver and her son, who was in the vehicle, were taken to the hospital, the station reported.

The California Highway Patrol officer was taken to hospital with “moderate injuries,” the Ventura County Fire Department said on Twitter.

Mr Trudeau was on his second day of a visit to California.

He made appearances in San Francisco on Thursday and is set to appear in Los Angeles today.

The Canadian prime minister came with an unambiguous message on his latest US visit: the North American Free Trade Agreement needs to be modernised, not abandoned.

With the next round of talks over the trade pact set to begin in Mexico later this month, Mr Trudeau used the speech at the Ronald Reagan Presidential Library to cast the deal as part of a long history between the two countries that has been beneficial for both.

He also promoted Canada as a destination for California technology firms uneasy with shifting US immigration policy.