The State College Police Department is investigating a burglary that occurred between Nov. 21 and Monday on the 900 block of Bellaire Avenue. The resident reported that a 19-inch Dell flat-screen computer monitor, valued at $300, and a Sony PlayStation 2, valued at $200, were stolen, police said. The doors were locked, and there were no signs of forced entry from the exterior. Police said a window was left ajar, but the screen was intact. A locked bedroom door was forced open from the inside, but nothing was taken from the bedroom. Police said there are no suspects.