PITTSBURGH (AP) — People with knowledge of the investigation are telling The Associated Press that at least 10 people have died in the shooting at Pittsburgh synagogue.

Authorities say the gunman opened fire during a baby naming ceremony Saturday morning at the Tree of Life Congregation in Pittsburgh’s Squirrel Hill neighborhood. Six people were wounded, including six police officers.

The people spoke to the AP anonymously because they were not authorized to speak publicly about the shooting.

EARLIER:

PITTSBURGH (AP) — A shooter opened fire during a baby naming ceremony at a Pittsburgh synagogue on Saturday, killing an unknown number of people and wounding six others including four police officers who dashed to the scene, authorities said.

Police said a suspect was in custody after the attack at the Tree of Life Congregation in Pittsburgh’s Squirrel Hill neighborhood. A law enforcement official identified the suspect as Robert Bowers and said he is in his 40s. The official wasn’t authorized to discuss an ongoing investigation and spoke to The Associated Press on condition of anonymity.

City officials said the shooting was being investigated as a federal hate crime. It comes amid a rash of high-profile attacks in an increasingly divided country, including the series of pipe bombs mailed over the past week to prominent Democrats and former officials.

It was unclear how many people were killed Saturday.