DENVER — Police say they found no evidence that shots were fired inside a Denver hospital complex that was locked down for hours amid reports of a man carrying a rifle on the grounds.

Cmdr. Patrick Phelan said Monday that nurses thought they heard gunshots during the Friday afternoon lockdown at Rose Medical Center. But he says they most likely mistook the sound of doors shutting and locking for gunfire. Police found no shell casings.

Officers with long guns surrounded the facility and did a room-by-room search of the complex that took several hours. Phelan says police are continuing to look for a man seen in grainy surveillance video carrying something outside the medical center, possibly a rifle or a BB gun.

VIAThe Associated Press
The AP is one of the largest and most trusted sources of independent newsgathering. AP is neither privately owned nor government-funded; instead, as a not-for-profit news cooperative owned by its American newspaper and broadcast members, it can maintain its single-minded focus on newsgathering and its commitment to the highest standards of objective, accurate journalism.