Samsung investigates reports of heat problems with replacement Note 7 phones

Samsung Electronics Co Ltd said on Monday it is investigating reports of heat damage issues on new Galaxy Note 7 devices after U.S. carrier AT&T Inc said it would stop exchanging the device to customers. "If we determine a product safety issue exists, Samsung will take immediate steps approved by the CPSC to resolve the situation," Samsung told Reuters in a statement. The family that owned the device said the phone was a replacement device that Samsung has said uses safe batteries.