Here's what we know about the suspects in Tuesday's terrorist attacks in Brussels

Belgian authorities identified some of the suspected terrorists in yesterday’s bombings in Brussels, one of whom is still at large and being sought by police.

Federal prosecutor Frederic Van Leeuw said a photo from airport security cameras showed two of the suspected terrorists, Ibrahim El Bakraoui and Najim Laachraoui. A third person in the photo was initially reported by Belgian media as being Ibrahim’s brother, Khalid El Bakraoui, but authorities now say that Khalid was responsible for a separate attack at Maelbeek subway station an hour later.

Based on information provided by a taxi driver, police raided a house in the Schaerbeek neighborhood. They confiscated explosives, a computer and a suicide note from Ibrahim El Bakraoui.

Laachraoui is the only suspect believed to be at large. Authorities said they think he is responsible for bringing a third bomb to the airport that did not detonate. Surveillance footage shows him leaving the airport. Belgian media briefly reported he had been arrested in Anderlecht, Belgium, but that report was later retracted.

Laachraoui was already wanted by Belgian police as an accomplice of Salah Abdeslam, a suspect in the November attacks in Paris that killed 130 people, who was arrested in Belgium last week. He also has been linked to the Paris attacks, as his DNA was previously found on explosive material used there.

Von Leeuw said on Tuesday it was too soon to draw a connection between the Brussels and Paris attacks. The terrorist group Islamic State has claimed credit for the attack over channels it maintains on the messaging app Telegram.