A head-on collision injured four people and blocked a north Fulton County road for more than an hour early Monday.

Two of the injured people became trapped in the three-car crash on Holcomb Bridge Road and had to be freed, Roswell police Sgt. Zachary Frommer said.

However, none of the injuries were life-threatening, according to police.

It’s unclear what exactly caused the accident, which shut down both directions of Holcomb Bridge Road between Barnwell Road and the Chattahoochee River from just before 5 a.m. until about 6:15 a.m.

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In other news:

Police are investigating a shooting in Little Five Points.