(CNN) -- Seventeen people were killed and 10 injured in an attack on a party in Torreon, Mexico, the state-run news agency Notimex reported, citing a representative of the federal attorney's general office.
A group of men armed with automatic rifles stormed the party early Sunday morning at a party hall called the Quinta Italia Inn and opened fire on the guests, the official, Fernando Adrian Olivas, told Notimex.
The injured were transported to various hospitals in the region, he said.
Torreon is located in northern state of Coahuila, which like other border states, has seen a high level of drug cartel-related violence.
As of Sunday afternoon, only 10 of the 17 killed had been identified, the news agency reported.
The ages of those identified ranged from 20 to 38.