Little Rock police say a standoff is ongoing between authorities and a suspect in a robbery attempt and shooting at an Arkansas restaurant that left an officer injured.

Authorities say an off-duty police officer working security at a Red Lobster restaurant was shot in the shoulder during the robbery attempt Saturday night. The officer also returned fire, striking a juvenile suspect.

That suspect is hospitalized in serious condition and a second suspect was arrested Sunday morning.

Police Department spokesman Lt. Steve McClanahan said early Monday morning that the third suspect was inside a home in Little Rock.

McClanahan says the suspect is believed to be the only one inside.

The officer, 39-year-old Shawn Bakr, was treated and released Saturday night. He's on paid leave while the shooting is investigated.