Islamic State has claimed responsibility for the bombings in Brussels on Tuesday, according to a news agency affiliated with the group.\r\n\r\nAccording to Reuters, the AMAQ agency wrote, "Islamic State fighters carried out a series of bombings with explosive belts and devices on Tuesday, targeting an airport and a central metro station in the centre of the Belgian capital Brussels."\r\n\r\nThe death toll and injury count also continues to rise. CNN most recently reported at least 34 people had died and about 170 more have been injured.\r\n\r\nPREVIOUSLY:\r\n\r\nBrussels was rocked Tuesday morning by a series of terrorism attacks, including two explosions at the airport and one at a subway station in the Belgian capital. Initial reports suggested that the death toll could be as high as 28.\r\n\r\n"We were fearing terrorist attacks, and that has now happened," Belgian Prime Minister Charles Michel told reporters.\r\n\r\nBelgian federal prosecutor Frederic Van Leeuw said one of the explosions at the airport was likely caused by a suicide bomber, according to NBC News. He also said it was too soon to give a precise victim count.\r\n\r\nCNN reported that at least 13 people were killed at the airport, and at least 25 people were injured.\r\n\r\nIn addition, at least 15 people were killed and 55 injured at the\u00a0Maalbeek subway station located near the official European Union headquarters buildings, Belgian subway spokesman Guy Sablon told the Associated Press.\r\nAlso Read: Paris Terror Attack Suspect Captured by Belgian Authorities\r\nBrussels officials raised the terror threat level to four, the highest level. They also shut down all public transportation in the city and advised locals to stay indoors; security was heightened throughout Europe in the wake of the attacks.\r\n\r\nThe first explosions occurred at around 8 a.m. local time, both just outside and inside the departures area of the Brussels airport, according to news reports, and well before people would reach the airline security checkpoints.\r\n\r\nNBC News reported that the explosion happened near the check-in area of Departure Hall 1, which is used by international carriers including American Airlines.\r\nAlso Read: Eagles of Death Metal Cancel Post-Paris Attack Tour\r\nAbout an hour later, another explosion took place at the Maalbeek metro station, located near European Union headquarters buildings in the heart of the Belgian capital.\r\n\r\nPhotographs posted on social media captured the aftermath of the explosions, with shattered glass and roof tiles scattered at the airport terminal and other signs of destruction. Other images showed passengers covered in blood and soot.