Police are looking for a man they say robbed a grandmother and threatened to shoot her grandchildren at the Hickory Hill Community Center, then targeted another woman the next day. The first robbery happened at 2:35 Monday afternoon at the center at 3910 Ridgeway Road.

A 13-year-old and 18-year-old were arrested after a robbery that led to a police pursuit in Hickory Hill on Saturday, the Memphis Police Department said.

MPD said the grandmother told them the man tried to sell her a bicycle, which she refused; the man then reached into his waistband, implying he had a gun, and threatened to shoot the woman's grandchildren if she didn't give him her keys.