RTBF

A gunman killed two police officers and a passerby on Tuesday before being shot dead in the centre 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.

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

An explosion injured several people and brought down a residential building in the Belgian city of Antwerp on Monday evening, police said, stressing the incident was not related to terrorism, Reuters reported.

Two Belgian policemen were arrested for helping a group of migrants return to France after they wound up in Belgium by mistake while heading to Calais, officials said Sept. 22.

A man has been arrested by police in Brussels in connection with recent terror attacks in the city, Belgian public broadcaster RTBF reported on Friday.

The suspect, carrying a backpack, was shot and wounded in Schaerbeek suburb of the Belgian capital after refusing to obey police orders. Blasts were also heard during the anti-terror operation.

The Belgian authorities confirmed that brothers Khalid and Brahim El Bakraoui are among Brussels Airport suicide bombers.

According to Belgian broadcaster RTBF, the brothers were known to police for links to organized crime.

In the meantime, authorities have released a manhunt to find the third attacker.

The world has celebrated the coming of a New Year on the last day of 2015, amid terror threats leading to a number of central squares being blocked to celebrations. 

Australia's biggest city, Sydney, was the first to host a major event to ring in the New Year, with pyrotechnics exploding over the harbor.

Belgian authorities on Dec. 30 cancelled the annual New Year's Eve festivities and fireworks in the heart of Brussels after revealing an alleged jihadist plot to attack the capital during the holiday.

Belgian public broadcaster RTBF said on Nov. 16 that police had detained a person during a raid in the Brussels district of Molenbeek, but that it was not wanted Paris suspect Salah Abdeslam.

Earlier, broadcaster RTL said Abdeslam, a Frenchman wanted in connection with the Paris attacks, had been arrested. 

Officials were not immediately available for comment.