Brussels Airport remained closed through Sunday. The airport said March 25 that it was still uncertain when forensic investigators would finish their work in the terminal and the airport authorities would regain access to the building. Even after they do so, a survey will have to be conducted on any structural damage as a result of the two bomb blasts. The authorities will also have to repair or replace destroyed fittings and clean the landside area where the attack occurred. No date for re-opening the terminal has yet been announced.