Officers were called around 11:50 a.m. to a home on the 1200 block of Harrisburg Pike on a report of a domestic dispute, Manheim Township police said.
Rayvon Thomas allegedly stabbed another person in the chest with a paring knife during a fight, according to investigators.
It is not clear what sparked the argument.
The victim was taken to an area hospital with serious injuries, police said.
Thomas was charged with two counts of aggravated assault.
He was remanded to Lancaster County Prison in lieu of $250,000 bail, according to public court records.
His preliminary hearing is scheduled for Jan. 18, records show.
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