A woman and her two teenage sons were arrested for possession of a firearm and ammunition.
They were held during an Operation Strike Back 3 exercise in La Horquetta on Wednesday.
Between 3pm and 5pm, police executed a search warrant for illegal arms and ammunition at the house in Phase 1.
They found an AR-15 Rifle, together with 31 rounds of ammunition in a bedroom.
A 41-year-old woman was held along with the boys, ages 17 and 18.