Explosion shatters windows of Starbucks

NEW YORK - An explosion shattered the windows of a Starbucks coffee shop in New York City, but no injuries were reported.

Police were trying to determine what type of device caused the blast early Monday morning at the intersection of 92nd Street and Third Avenue on Manhattan's Upper East Side, New York Police Department Lt. Mike Wyosokowski said.

The explosion occurred at around 3:30 a.m., when the coffee shop was closed.

Seven people were evacuated from the building above the store, but all returned home, a Police Commissioner Kelly told NBC affiliate WNBC.

There was “no message, no note, no advanced phone call,” he said, adding that the blast was caused by a “low order improvised device.”

Police swept the area but no other devices were found and the area seemed safe, WNBC reported.

The city has experienced other predawn explosions in recent years at the British and Mexican consulates and at a military recruiting station in Times Square.

More on: Starbucks

More from msnbc.com Easing job losses point to wobbly recovery Cars are approaching ‘auto’ pilot mode Were you paying attention? Take our news quiz  Facebook’s fantasy games cost more than time How readers got pieces of Berlin Wall | Gallery  Not supposed to worry about troops at home On Twitter: Breaking news updates | Weird and wild

MORE FROM CRIME & COURTS

Crime & courts Section Front

Alleged shooter tied to mosque of 9/11 hijackers Fort Hood rampage brings prayers, questions Suspect identified in Seattle police killing Alleged Fort Hood shooter's lonely life Killings unsolved as sniper execution nears High court to look at life in prison for juveniles Prosecutors seek journalism students’ grades Onlookers flock to site of Cleveland killings Clear warning signs, Hasan's colleagues say NYT: Muslims at Fort Hood voice outrage Crime & courts Section Front   Add Crime & courts headlines to your news reader: