Seventeen people injured in shooting outside nightclub after being caught in crossfire, police say

A manhunt in Alabama for a suspect in the shooting outside a nightclub that killed four people and wounded 17 on Saturday night entered its second full day on Monday.

The shooting in Birmingham was at least the 24th mass murder in the US so far this year, according to the Gun Violence Archive. The archive defines a mass murder as one in which four victims are killed or wounded.