Chester County authorities said progress in the investigation of a double homicide in Avondale on Saturday has led to an arrest, but no other information was available.

Cuahuctemoc Bedolla, 27, and Jose Rodriguez, 29, both of West Grove, were fatally stabbed at a party in New Garden Township on Saturday night, police said, calling the attack "preplanned." Officers first responded to Jennersville Regional Hospital in West Grove at 11 p.m. on a report that Bedolla was critically injured. He was flown to Christiana Hospital, where he was pronounced dead about an hour later.

Investigators then visited the 1600 block of Baltimore Pike in Avondale, a mixed residential-industrial area where Bedolla had attended a party. Witnesses told police a fight broke out after 10 p.m. among the attendees and some uninvited guests; during a search of nearby property, police found the body of Rodriguez.    - Kathleen Brady Shea