HOLYOKE (AP) -- A Holyoke man charged with shooting at pedestrians crossing a city bridge faces arraignment.

Authorities say 19-year-old Edgar Zayas is scheduled to be arraigned Monday on four counts each of armed assault to murder and assault with a dangerous weapon, as well as firearms charges.

Police say Zayas was arrested after a standoff with police on the Vietnam Veterans Memorial Bridge at about 9 p.m. Saturday. Pedestrians on the bridge between Holyoke and South Hadley told police they were shot at.

There were no reports of injuries.

Police say Zayas had taken angel dust and wanted police to shoot him.

Officer Victor Heredia is being praised for sneaking up behind Zayas and tackling him.

It's unclear if Zayas has a lawyer.