Gunman shoots police in Liege, four dead -Belgian media

BRUSSELS, May 29 (Reuters) - A gunman killed two police officers and a passer-by on Tuesday before being shot dead in the center of the Belgian city of Liege, public broadcaster RTBF said on its website and authorities said terrorism could not be ruled out as a motive.

La Libre Belgique newspaper quoted a police source as saying the gunman shouted Allahu Akbar -- God is greatest in Arabic -- and RTBF said investigators believed the attacker may well have had a terrorist motive.

The man had taken a woman hostage at some point in the attack, the newspaper said.

The national anti-terrorist crisis center, which Interior Minister Jan Jambon said on Twitter was monitoring the situation, said terrorism could not be excluded as a motive though it was also looking into other possible reasons.

"It (terrorism) is one of the questions on the table, but for the moment all scenarios are open," a spokesman for the crisis center said.

Two other police officers had been injured, Belga news agency said. A spokeswoman for the Liege public prosecutors office confirmed that two police officers had been shot dead and the gunman "neutralized" but could not confirm other details.

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Shooting in Liege, Belgium
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Shooting in Liege, Belgium
Emergency responders are seen following a shooting in Liege, Belgium, May 29, 2018 in this picture grab obtained from social media video. Courtesy of VICTOR JAY/via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT.
Police officers are seen on the scene of a shooting in Liege, Belgium, May 29, 2018. REUTERS/Francois Lenoir
Emergency responders are seen following a shooting in Liege, Belgium, May 29, 2018 in this picture obtained from social media. Courtesy of VICTOR JAY/via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT.
People are seen following a shooting in Liege, Belgium, May 29, 2018 in this picture obtained from social media. Courtesy of VICTOR JAY/via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT.
An ambulance car is seen on the scene of a shooting in Liege, Belgium, May 29, 2018. REUTERS/Francois Lenoir
Police officers redirect traffic in the eastern Belgian city of Liege on May 29, 2018, near the site where an armed man shot and killed police officers before being subdued by police. (Photo by JOHN THYS / AFP) (Photo credit should read JOHN THYS/AFP/Getty Images)
Emergency responders are seen following a shooting in Liege, Belgium, May 29, 2018 in this picture obtained from social media. Courtesy of VICTOR JAY/via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT.
Police officers speak with parents of children at a nearby high school in the eastern Belgian city of Liege on May 29, 2018, after a man killed three people including two policemen. - The shooting occurred around 10:30am (0830 GMT) on a major artery in the city close to a high school. 'We don't know anything yet,' the spokeswoman for the Liege prosecutors office, told AFP when asked about the shooter's motives. (Photo by JOHN THYS / AFP) (Photo credit should read JOHN THYS/AFP/Getty Images)
Police and ambulance are seen at the site where an armed man shot and killed police officers before being subdued by police in the eastern Belgian city of Liege on May 29, 2018. (Photo by JOHN THYS / AFP) (Photo credit should read JOHN THYS/AFP/Getty Images)
A police officer speaks with parents of children at a nearby high school in the eastern Belgian city of Liege on May 29, 2018, after a gunman shot dead three people, two of them policemen, before being killed by elite officers. - The shooting occurred around 10:30am (0830 GMT) on a major artery in the city close to a high school. 'We don't know anything yet,' the spokeswoman for the Liege prosecutors office, told AFP when asked about the shooter's motives. (Photo by JOHN THYS / AFP) (Photo credit should read JOHN THYS/AFP/Getty Images)
A police officer speaks with parents of children at a nearby high school in the eastern Belgian city of Liege on May 29, 2018, after a gunman shot dead three people, two of them policemen, before being killed by elite officers. - The shooting occurred around 10:30am (0830 GMT) on a major artery in the city close to a high school. 'We don't know anything yet,' the spokeswoman for the Liege prosecutors office, told AFP when asked about the shooter's motives. (Photo by JOHN THYS / AFP) (Photo credit should read JOHN THYS/AFP/Getty Images)
Police and ambulance are seen at the site where a gunman shot dead three people, two of them policemen, before being killed by elite officers, in the eastern Belgian city of Liege on May 29, 2018. - The shooting occurred around 10:30am (0830 GMT) on a major artery in the city close to a high school. 'We don't know anything yet,' the spokeswoman for the Liege prosecutors office, told AFP when asked about the shooter's motives. (Photo by JOHN THYS / AFP) (Photo credit should read JOHN THYS/AFP/Getty Images)
An ambulance car drives in the eastern Belgian city of Liege on May 29, 2018, near the site where a gunman shot dead three people, two of them policemen, before being killed by elite officers. - The shooting occurred around 10:30am (0830 GMT) on a major artery in the city close to a high school. 'We don't know anything yet,' the spokeswoman for the Liege prosecutors office, told AFP when asked about the shooter's motives. (Photo by JOHN THYS / AFP) (Photo credit should read JOHN THYS/AFP/Getty Images)
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Images on social media showed people scurrying for safety on Liege's central boulevard d'Avroy with shots and sirens being heard in the background.

Liege, an industrial city close to the German border in a French-speaking region, was the scene of a shooting in 2011, when a gunman killed four people and wounded more than 100 others before turning the gun on himself.

Belgium has been on high alert since a Brussels-based Islamic State cell was involved in attacks on Paris in 2015 that killed 130 people and Brussels in 2016 in which 32 died. (Reporting by Robert-Jan Bartunek, Alissa de Carbonnel and Philip Blenkinsop Editing by Richard Balmforth)

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