At least 5 killed after Mexican Navy plane on medical mission crashes in Texas

A Mexican Navy plane transporting a young medical patient crashed near Galveston, killing at least five people and setting off a search along the Texas coast.

A small Mexican Navy plane transporting a young medical patient and seven others crashed Monday near Galveston, killing at least five people and setting off a search in waters along the Texas coast, officials said.

Four of the people aboard were Navy officers and four were civilians, including a child, Mexico's Navy said in a statement to The Associated Press. Two of the passengers were from a nonprofit that provides aid to Mexican children with severe burns, including transports to a Galveston hospital.

U.S. Coast Guard Petty Officer Luke Baker said at least five aboard had died but did not identify which passengers.

The cause of the crash is under investigation.

Mexico's Marines said in a statement that it is sending "its deepest condolences to the families of those who lost their lives in this tragic accident."