Police said they discovered four more bodies Tuesday at the Cleveland home of suspected serial killer Anthony Sowell, bringing the total to 10.

Cleveland police Chief Michael McGrath said at an evening news conference the four bodies were discovered in the back yard of the home, WEWS-TV, Cleveland, reported.

Workers had resumed digging at the home Tuesday, and a tent is being put up in the back yard so crews can dig through the night, The (Cleveland) Plain Dealer reported. The newspaper said authorities had stopped searching for bodies for two days before resuming.

Five of the first six victims found had been strangled and the sixth died from unknown causes, police said. All six are women.

As police continued searching, Sowell was charged Tuesday with five counts of aggravated murder as well as rape, felonious assault and kidnapping and is to be arraigned Wednesday, WEWS said.

Sowell was arrested Saturday after five decomposing bodies were found in his home and and one outside.

He was released from prison in 2005 after serving 15 years for raping a woman in East Cleveland.

None of the victims has been identified. All were African-American, the coroner said.