BRADDOCK — A police officer was injured when a freight train and a police cruiser were involved in an early morning crash.

Officials said the officer's cruiser and a CSX train collided around 3 a.m. today in Braddock. Allegheny County emergency dispatchers said the Braddock police officer suffered minor injuries.

County detectives were called to the scene to determine the cause of the collision.

No other injuries were reported.

PITTSBURGH — A fire at a historic armory has been contained to an office area.The fire at the Capt. Alfred E. Hunt Armory in Shadyside was reported about 7:20 a.m. today and was under control about a half-hour later.Allegheny County emergency dispatchers said the fire was contained in the second-floor office area, though its cause was not immediately clear.There are no reports of injuries or damage to other parts of the building.The armory was built in 1916 and is on the National Register of Historic Places. Originally home to an Army battalion, it was the largest auditorium in the city until the Civic Arena opened in 1961. It was used for concerts and political events.

PITTSBURGH — Chalk it up to a good-natured joke, but a Pittsburgh school teacher might have a new record on his hands. Or at least sitting on the floor of his classroom.Three students made Bishop Canevin High School history teacher Joseph Romano a 270-pound piece of chalk as a joke after noticing his affinity for oversized chalk.Matt Durbin, Nick Sylvester and Terry Dougherty mixed plaster and water in a trash can to make chalk similar to the kind used on sidewalks.The result is effective, even if a bit unwieldy. Romano has taken to chipping off chunks as he needs them.