A late-night explosion in the Exarchia neighborhood of Athens caused significant damage to an apartment building, authorities reported early Friday. The blast, believed to have involved one or two gas canister devices, shattered windows and marble surfaces at the building on Deligianni Street.

The incident occurred shortly after midnight, and so far no injuries have been reported. Police are conducting a preliminary investigation to determine the cause and circumstances of the attack.

Officials are reviewing available evidence and actively searching for the individuals responsible for placing the explosive devices. The authorities have urged anyone with information to come forward to assist with the ongoing investigation.