REGINA — Air Canada says an unclaimed cellphone was behind a decision to divert a Toronto-bound flight from Edmonton to Regina.

The Airbus A320, with 136 passengers, landed in the Saskatchewan capital at 9:25 a.m. on Wednesday after the phone was found on board.

Regina Airport Authority CEO Dick Graham said the airport activated its emergency response procedures, which included calling police and the fire department.

Graham said the response matched the situation at hand and went by the book.

Air Canada said the plane was diverted “strictly out of an abundance of caution.”

It took off again shortly after a security check and refuelling.