The video, posted on YouTube and other websites, shows four men in camouflage Marine combat uniforms urinating on three corpses. One of them jokes: “Have a nice day, buddy.” Another makes a lewd joke.

President Hamid Karzai’s government “strongly condemned” the video and called the actions by American soldiers “insulting” and “insane.”

“The Islamic republic of Afghanistan is demanding the investigation and punishment for the solders from the U.S. government regarding this film as soon as possible,” the presidential palace says in a statement released Thursday.