A 34-year-old man was arrested after he broke into a Lake Highlands apartment and sexually assaulted a 12-year-old and 13-year-old girl.

Oscar King was charged with aggravated sexual assault of a child and burglary, according to Dallas County records. He also violated probation for assaulting a family member.

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His bond is set at $100,000.

Early Wednesday, King broke the bedroom window of an apartment in the 10800 block of Walnut Hill Lane, according to the Dallas Morning News. Three girls were asleep in the bedroom before he assaulted two of them.

He threatened to kill the girls’ family if they weren’t compliant during the assaults, the Morning News reported. King fled after the 12-year-old girl hit and kicked him, and all three girls screamed.

Employees at the apartment complex told police that a man often seen on the property knocked on windows and doors and exposed himself to residents. He matched the attacker’s description.

When police found and questioned King, he admitted he assaulted the girls.

King previously has been convicted of drug possession, injury of a child, elderly or disabled and resisting arrest, according to Dallas County court records.