Stanley has received 91 reports worldwide, including 16 in the U.S., of the recalled travel mugs’ lids detaching during use, resulting in 38 burn injuries worldwide, including two burn injuries in the U.S., with 11 consumers worldwide requiring medical attention.

Stanley is recalling roughly 2.6 million of its switchback and trigger action stainless steel travel mugs sold in the U.S. because of a potential burn hazard.