PHILADLPHIA (CBS) – Some deadbeat parents got unexpected knocks on their doors Monday morning.

The Philadelphia Sheriff’s office, in coordination with Bucks, Chester, Delaware, and Montgomery Counties, launched a city-wide sweep for deadbeat parents.

The sweep started at 3 a.m. Monday morning, rounding up dead beats who, the Sheriff’s office says, haven’t paid child support or are facing outstanding warrants for domestic violence.

At least 10 people were rounded up Monday morning. It was a rude Valentine’s Day awakening according to Sergeant Vernon Muse of the Philadelphia Sheriff’s Office.

“The general reaction was surprise. I wish we had some flowers and some candy to present these guys with, but unfortunately we didn’t. All we had were warrants.”

Sgt. Muse says the sweep targeted deadbeats from all five of the Pennsylvania counties who now live in Philadelphia. The amount owed in back child support ranges from $200 to $200,000. Muse says after knocking on doors all morning, they expect more people to turn themselves in.

Reported by Jim Melwert, KYW Newsradio