Belgian authorities have charged two more men with offenses related to the Brussels bombings.

The Belgian Federal Prosecutor's office said Tuesday the suspects, identified only as Smail F. and Ibrahim F., were involved in renting an apartment in the Etterbeek area of Brussels that served as a hideout for the bomber who attacked the Brussels subway as well as a suspected accomplice.

Sixteen victims died in the March 22 attack, the same day a pair of suicide bombers also killed 16 victims at Brussels airport.