DETROIT (AP) _ A robber armed with a hammer and wearing no pants held up two stores, police said. The bottomless bandit later turned himself in, they said.

Laurence Renkiewicz, 27, was arraigned Thursday on armed robbery charges in district courts in Plymouth and Inkster. He was being held in Inkster in lieu of $50,000 bond, police said.

Detroit police said Renkiewicz also was a suspect in an armed robbery in Detroit, where a thief with a hammer wore a bag on his head - but wore pants.

The hold-ups started Sunday at a gas station and convenience store in Canton Township, near Plymouth, said Canton Township police Detective Brian Schultz.

The robber was wearing a plaid shirt, no pants and a brown grocery bag over his head. Also that day, the KC Liquor Store in Detroit reported a man with a hammer and wearing a grocery bag with eye slits demanded money, police records showed.

That robber was wearing a plaid shirt, blue jean jacket and pants.

A few hours later, the Station Boutique in Inkster reported being held up by a man who wore no pants and no bag, said Inkster police.