About a thousand of the refugees are trapped inside a playground within the stadium complex, with no access to water or shade. A further 1,500 are housed in a separate section of the stadium, with some protection from the sun.

The migrants were originally locked inside on Tuesday night ostensibly to be registered. But, according to MSF, just three police officers were there to carry out the registration, slowing the process down and exacerbating tensions.

At one point the police used a sonic explosion to maintain order, and the MSF team withdrew for safety reasons. “It was becoming a bit uncontrollable, the situation, and there was a complete lack of coordination. It was just the police there, no UNHCR [the UN’s refugee agency], and no security for [our] team,” said Julia Kourafa, a spokeswoman for MSF at the stadium.