A high school soccer player has been stabbed to death at a Massachusetts restaurant where more than 200 teens had gathered for a birthday party.

Police say 17-year-old Conor Reynolds died after being stabbed in the neck late Saturday. Reynolds was a senior at Cathedral High School in Springfield, one of the state's biggest cities.

Another student was stabbed in an arm.

Sgt. John Delaney says more than 250 people had gathered for the party at the Blue Fusion Bar and Grill. He says no security was on hand and many teens were drinking before entering the club, which has no liquor license and no listed telephone number.

Police Commissioner William Fitchet says the attacker stabbed the unarmed teenagers "with little or no provocation."

Police are seeking a suspect. They say they hadn't made any arrests as of Sunday afternoon.