Douglas County prosecutors on Tuesday filed an aggravated assault charge against a 46-year-old Lawrence man who was accused of threatening his girlfriend with a knife during an argument at 10 p.m. Sunday in the 600 block of Schwarz Road.

The girlfriend, 39, of Lawrence, also alleged he verbally threatened her, said Sgt. Matt Sarna, a Lawrence police spokesman. Police arrested John Paul Cron at 5 p.m. Monday in connection with the case, and prosecutors filed the charge against him Tuesday. A judge set his bond at $10,000, cash or surety.