A man places a candle on a street memorial Wednesday following bomb attacks one day earlier in Brussels, March 23, 2016. Reuters

A taxi driver who picked up the suspected Brussels terrorists and took them to the Zaventem airport Tuesday helped police find explosives in the airport and a home in the Schaerbeek municipality in Brussels, Sputnik News reported, citing the Belgian newspaper Derniere Heure.

The driver also told police where he picked up the men, leading law enforcement officials to the house in Schaerbeek. The driver also didn’t allow the men to take all the bags they wanted to take, as there wasn’t enough room in the taxi cab.

After comparing the media descriptions of the suspected terrorists to what he remembered of the men who entered his cab Tuesday morning, the cab driver called police. He told police the men had three bags instead of the initially reported two, leading police to find an additional third bomb at the airport that never was detonated.

Tuesday’s Brussels attacks left at least 34 people dead and many more wounded, media reports said. Police in Belgium have launched a massive hunt for one of the men they think was responsible, Najim Laachraoui. Police have said that as of Wednesday, he is still at large, even though there were conflicting media reports earlier about whether he was arrested.

Two others, brothers Khalid and Brahim El Bakraoui, were also identified as suspects in the attack but died during their suicide bombings at the airport and at a metro station, CNBC reported. The Islamic State group, also known as ISIS, has claimed responsibility for the Brussels attacks, just as it did with the Paris attacks in November that left many more dead. Belgian authorities haven’t made an official statement yet on whether ISIS is behind the attacks.

Police found an ISIS flag in the home of the suspected terrorists. The attacks came just days after the arrest of Salah Abdeslam, one of the suspects in the Paris attacks.