LONDON, Ont. -- A police officer in London, Ont., has been charged with sexual assault.

Police allege three separate assaults were committed between June 2011 and last month involving two women described as acquaintances.

It's alleged the incidents took place while the officer was on duty.

Const. Andrew Michalski, 31, has been charged with three counts of sexual assault.

Michalski, an 11-year force member, is due in court Sept. 6.

He has been suspended from active duty.