OAKVILLE, Ont. -- Ford is recalling the charging cords for more than 50,000 plug-in hybrid and electric cars in North America, including 1,327 in Canada, because they could cause fires in electrical outlets.

The company says the 120-volt cords came with certain 2012 through 2015 Focus electrics and some 2013 through 2015 Fusion Energi and C-Max Energi plug-in hybrids.

Ford says plugging the cords into outlets that aren't on a dedicated circuit or on damaged, worn or corroded circuits could cause wall outlets to overheat.

The company has reports of four fires involving C-Max cords, but no injuries.

In three of the fires, owners used extension cords, which Ford said it tells owners not to do.

Ford says the cause of the fourth fire was inconclusive but it does not believe the blaze was related to the cord.

Dealers will replace the cords with ones that can sense high temperatures and shut off charging if necessary. Owners will be notified by letters starting next week.

Ford says owners can keep using the original cords but should follow owners-manual instructions that spell out requirements for wall outlets.

The company says it had also recalled some 2018 Ford Edge and Lincoln MKX and 2019 Ford Flex and Lincoln MKT vehicles because of improperly secured power supply cable fasteners.

Ford says seven vehicles are involved in Canada and 87 in the U.S., though it is not aware of any fires, accidents or injuries related to the issue.