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Gunshots rang out before dawn Sunday in Port Arthur, police say, leading to a deadly conduct investigation and a startled sleeping couple.

Port Arthur Police officers responded to the 600 block of Houston Avenue after several gunshots were fired at approximately 3:49 a.m.

“While out investigating the gunfire, a call was received at (225 5th St.), a block away from the initial call, in reference to a home being struck by possible bullets,” a PAPD release said.

“Once officers arrived and began investigating at the home, it was discovered that it had been struck three times by bullets.”

Authorities said the home’s occupants — a man and his wife asleep — were not injured.

PAPD’s Criminal Investigation Division is investigating the shooting.

Police have not initially released details about arrests or suspects.