A man who beat up his pregnant girlfriend over a toilet seat claimed to be the victim of a robbery when cops found him this weekend, said Upper Darby Police Superintendent Michael Chitwood.

Now that suspect, Marley Aris, is facing charges of assault on an unborn child, aggravated assault and false identification to law enforcement authorities for the Saturday night incident.

Around 11:30 p.m., police received an anonymous call about a domestic disturbance at an apartment complex on Hampden Road  near Ludlow Street in Upper Darby. When they arrived they found a 19-year-old pregnant woman crying hysterically on a fire escape with cuts and bruises to her body, Chitwood said.

The woman told police her 30-year-old live-in boyfriend, Aris, beat her up and punched her in the stomach after the two got into an argument about a missing toilet seat, Chitwood said. He then took her phone and her keys and took off, police said.

Cops spotted him a short time later at 69th and Chestnut streets and when he was approached he gave officers the fake name of Malik Evans and told them he was just the victim of a strong-armed robbery, which is why he had cuts and bruises on his face, Chitwood said.

Before authorities became aware of his true identity, they took him to the hospital to be treated for his injuries, according to Chitwood.

"He's claiming he's the victim and giving a phoney name so he could be treated for the injuries he got while he was beating up his girlfriend," he said.