A photograph of Donald Trump meeting with French President Emmanuel Macron on February 24 has sparked concern among Trump supporters due to a noticeable bruise on the back of the president’s hand. The bruise, which appears to be covered with makeup, was highlighted by several observers on social media.

Some pointed out that similar bruising had been visible on Trump’s hand in past photos. Getty Images described the bruise as being concealed with makeup. It’s unclear how the bruise occurred, and the White House has not commented.

During the meeting, Trump and Macron had a heated exchange about the cost of the Ukraine conflict, with Macron correcting Trump’s claims about EU aid to Ukraine. Despite the interruption, Trump stuck to his statement, insisting that European countries would eventually be reimbursed.