INDIO (CBSLA.com) — Authorities say two boys in Indio were attacked by a 4-year-old pit bull on Saturday night.

The Riverside County Department of Animal Services said in a written statement that the boys, ages 11 and 5, were outside when the leashed dog broke free from a temporary restraint and bit the children.

READ MORE: Man, 52, Taken Into Custody After Alleged Bomb Threat At U.S. Post Office In Oxnard

The incident happened about 7:30 p.m.

The statement said the 5-year-old sustained a bite to the back of his head, while the older boy suffered bites to his stomach and hand.

READ MORE: Up-And-Down Chargers Hold Off Bengals For 41-22 Victory

“The owner of the dog surrendered him to Riverside County Animal Services for humane euthanasia,” the statement added.

Authorities also said the dog had previously been placed on a potentially dangerous dog restraining order back in April after it bit its owner’s son in the head.

MORE NEWS: AP: Chris Cuomo Accused Of Sexual Harassment Days Before CNN Firing

The current condition of the two boys was not known.