Two men have been charged by Belgian police investigating the 22 March Brussels bombings, after they were linked to a safe house said to have been used by two of the attackers.

Prosecutors identified the men as Smail F and Ibrahim F. Local reports said they were brothers. Three suicide bombers killed 32 people at Brussels international airport and Maelbeek metro station. Two other suspected bombers were arrested in a police raid last Friday.

According to the prosecutors, Mohamed Abrini has confessed to being he « man in the hat » – the third airport bomber who fled without detonating his device. Swedish national Osama Krayem is thought to have been a man spotted with metro bomber Khalid el-Bakraoui before the Maelbeek attack.

Smail F and Ibrahim F were apparently arrested a day later and one of the brothers is thought to have rented a house in the central Etterbeek area of Brussels used by Osama Krayem and el-Bakraoui before the metro bombing.

The house in Avenue des Casernes was raided on Saturday but no explosives or weapons were found. « They are charged with participation in the activities of a terrorist group, terrorist murders and attempts to commit terrorist murders, as a perpetrator, co-perpetrator or accomplice, » prosecutors said in a statement.