CLAYTON, Mo. (AP) — Some Missouri and St. Louis County officials are calling for investigations following a St. Louis Post-Dispatch (http://bit.ly/2utTsQG ) report that county officers loitered and covered up security cameras during shifts at MetroLink light rail substations.

Among those expressing concern is Rep. Kathie Conway, a Republican from St. Charles who serves as the appropriations chairwoman for the Missouri Department of Public Safety and Transportation. She plans to call a committee hearing, possibly in September.

Police Chief Jon Belmar says allegations reported by Post-Dispatch columnist Tony Messenger are "anecdotal." Columns on Sunday and Monday included reports of officers loitering in security offices, texting or sleeping on duty and providing inaccurate information on their whereabouts.

MetroLink platforms have seen increasing violence recently. St. Louis County now supervises all officers working the transit system.

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Information from: St. Louis Post-Dispatch, http://www.stltoday.com