Last October when Rob Vagramov narrowly defeated the incumbent mayor of Port Moody, he was only 28 years old.

It signalled a major generational change for the city.

But two months later, the B.C. Prosecution Service appointed a special prosecutor to work with police who had launched a criminal investigation of Vagramov.

And today, the B.C. Prosecution Service announced that this special prosecutor, Vancouver lawyer Michael Klein, has approved a single charge of sexual assault against Vagramov.

It's in connection with an alleged offence that occurred in Coquitlam in 2015.

Vagramov's first court appearance is scheduled on April 25 in Port Coquitlam Provincial Court.

The appointment of Klein was only revealed today in a media statement issued by the B.C. Prosecution Service.

Vagramov has been elected by local mayors and councillors as vice president of the Local Government Association.

He grew up in Port Moody after his family fled Ukraine following the collapse of the Soviet Union.

In the last mayoral election, Vagramov positioned himself as a candidate who would control the city's growth.

It enabled him to defeat two-term mayor Mike Clay by 394 votes.