A robbery suspect is in custody after allegedly attacking a teenager near a local mall.

Police said the girl was at the Fashion Valley trolley station around 9:15 p.m. Monday when the suspect hit her in the head with his fist, then ran off with her purse.

The suspect was spotted running south by the San Diego River, so police searched for him near the Town & Country Hotel.

Police said the suspect surrendered after the hotel was locked down and searched.

Authorities said the girl was not seriously injured and her purse was recovered with its contents intact.