St. Louis County police say they are looking into allegations that officers covered up security cameras during shifts at a MetroLink substation, among other allegations raised by Metro transit officials in a Sunday Post-Dispatch column.

The statement released Sunday by county police Chief Jon Belmar and spokesman Sgt. Shawn McGuire implies the allegations are the result of “politics and infighting.” The statement says the security camera at North Hanley MetroLink substation, which documented at least eight instances since 2015 of police covering up its lens, is improperly placed in a “private room.”

“A limited number of carefully selected images from over a two-and-a-half-year period that were pulled from an improperly-placed surveillance camera in a 12x14 private room appeared with the article,” McGuire wrote. “This room is used to monitor security cameras, hold briefings and complete report writing. It is also the only room officers have to take breaks from work and weather as well as change clothes and equipment at the end of a shift.”