This story was updated at 8:48 a.m. with new information about the victims.

A Huntsville teenager was among two males killed and others injured in two overnight shootings that are believed to be unrelated.

Huntsville police spokesman Lt. Stacy Bates said this morning he can't yet confirm how many people were injured, although overnight media reports indicate at least three people went to the hospital.

Multiple shell casings littered the pavement on the 2200 block of Evans Avenue when police responded to the first shooting around 11:45 p.m., AL.com's news partner WHNT-19 reported.

A teenager who was struck by gunfire at that scene died after being take to Huntsville Hospital's emergency room, Madison County Coroner Bobby Berryhill told AL.com.

In what Bates said is believed to be an unrelated second shooting, a man also was pronounced dead at Sherwood Apartments on Karen Davie Drive around 1 a.m.

Berryhill said the causes of death in both cases were gunshot wounds.

Neither victim has been publicly identified yet pending family notification, but both males are Huntsville residents, Berryhill said.

WHNT reported one woman and two other males were taken to the hospital from the Evans Avenue shooting from treatment of life-threatening injuries.

The teenager who died may have prompted an exchange of gunfire when he fired a weapon, WHNT reported.

Police said one woman and three males were taken to the hospital with life-threatening injuries. One of the males, who police believe fired the weapon, is dead.

Bates said police will release more information as it becomes available.