Photo: CTV 

Pipeline protesters in Victoria.

A man protesting the prime minister's visit to Victoria was arrested on Thursday.

In a brief two-line news release Friday morning, Victoria police say the man was arrested for an "assault that involved the security detail of the prime minister."

A Victoria Police officer was injured during the course of the arrest, but has since returned to work.

The unidentified protester has been released on a promise to appear in court.

Police are still investigating and are releasing no further information.

Hundreds of people protesting expansion of the Trans Mountain Pipeline showed up at events attended by Justin Trudeau in Vancouver and Victoria, Thursday.

The PM was visiting the Ogden Point Coast Guard base in Victoria when the alleged assault presumably took place.