A Metro passenger tweeted pictures of inside the tunnel after he was evacuated from a train. Evan Lamos tweeted a picture of passengers climbing from his train into the tunnel, saying: "We are being evacuated from the back of the Metro, between Schuman and Maelbeek. "Smoke in the tunnel as we evacuate." Maelbeek station is around 500 metres from the buildings of the European Parliament. All Metro stations have been closed.