A First Niagara Financial Group executive has left to take a similar position with a Pennsylvania-based bank, months after First Niagara promoted him.

Avi Patel, who was named First Niagara’s chief marketing officer last December, was appointed executive vice president and chief marketing officer at Lancaster, Pa.-based Fulton Financial.

Patel left his First Niagara job in May, said Jodi Johnston, a First Niagara spokeswoman. “He accepted a new position that was near family.”

Johnston said a search is under way for a new chief marketing officer at First Niagara.