Brussels airport suicide bombers were brothers El Bakraoui known to the police, Brussels public broadcaster RTBF has said. Belgian police are hunting an Islamic State suspect seen with two supposed suicide bombers shortly before they struck Brussels airport in the first of two attacks that also hit the city's metro, killing at least 30 and wounding over 200. The blasts on Tuesday claimed by the Syrian-based militants four days after the arrest in Brussels of a prime suspect in November's Paris attacks, sent shockwaves across Europe and around the world, with authorities racing to review security at airports and transit systems, and drawing an outpouring of solidarity. Investigators said they were focussing on a man in a hat who was caught on CCTV pushing a laden baggage trolley at the airport with two others they believed were the bombers. An unused explosive device was later found at the airport and a man was seen running away from the terminal after the explosions. Security experts believed the blasts, which killed about 20 on a metro train running through the area that houses European Union institutions, were probably in preparation before Friday's arrest of locally based French national Salah Abdeslam, 26, whom prosecutors accuse of a key role in the November 13 Paris attacks. "A photograph of three male suspects was taken at Zaventem. Two of them seem to have committed suicide attacks. The third, wearing a light-colored jacket and a hat, is actively being sought," prosecutor Frederic Van Leeuw told a news conference. The two men in dark clothes wore gloves on their left hands only. One security expert speculated they might have concealed detonators. The man in the hat was not wearing any gloves.
One of the journalists, Nicolas Henin, 'has formally identified' Abou Idriss as being Najim Laachraoui, his lawyer Marie-Laure Ingouf said, confirming reports in French newspapers.
Mourad Laachraoui, the brother of one of the Brussels suicide bombers, has won gold at the European Taekwondo Championships and is now set to compete for Belgium at the Olympic Games in Brazil.
The sole suspect charged over last week's Brussels attacks was released on Monday following a lack of evidence linking him to the carnage, Belgian prosecutors said.
Mohamed Abrini was arrested in the borough of Anderlecht, in Brussels, next to the western district of Molenbeek, while two other suspects were detained at the same time as Abrini, and two further arrests made in an undisclosed location in Brussels.
Police have found the DNA of a newly-identified suspect on explosives used in last year's Paris attacks, a French source said on Monday.
Paris attacks suspect Mohamed Abrini was charged on Saturday with "terrorist murders" and confessed he was the man in the hat seen with the suicide bombers at Brussels airport.