2 suspects facing murder charges after stray bullet struck a pregnant woman on a Massachusetts city bus and the baby died after an emergency delivery

Two men are set to be charged with murder after a stray bullet from a gunfight in western Massachusetts struck a pregnant woman and killed her baby, the Hampden district attorney's office said Thursday.

The shooting stemmed from an altercation that broke out between three people in Holyoke, a city 8 miles north of Springfield, the DA's office said in a statement on Facebook.

Authorities believe a stray bullet from that street fight struck the bus and the pregnant woman Wednesday afternoon. Hours before the shooting unfolded, Holyoke police and city officials held a news conference to discuss the frequency of gunfire in the community.

Police responded to the scene around 12:40 p.m., and the woman was taken to a hospital in critical condition and underwent an emergency procedure to deliver the baby, according to the DA's office statement.

"The infant, who was delivered and needed life-saving medical services, tragically passed away," the DA said in the statement.

CNN has requested an update on the condition of the woman.

Alejandro Ramos, 22, is expected to be arraigned on a murder charge in connection with the shooting in Holyoke District Court on Thursday. The other suspect, Johnluis Sanchez, 30, is still in the hospital and will be formally arraigned on a murder charge when his condition allows, the DA's office said.