Monaco, Monaco—The principality remains on high alert following a targeted explosion at a residential building near the French border. Three individuals were injured late Monday night when a device detonated in the lobby of a private apartment complex. Local police report the victims are currently receiving emergency medical treatment for significant trauma.

Investigators identified the explosive device as a makeshift parcel bomb placed in the building entrance. Surveillance footage shows a lone male suspect dropping a backpack at the scene before fleeing on foot. The suspect appears to have crossed the border into France shortly after the detonation occurred.

State officials described the nature of the blast as a deliberate attack against specific residents. While authorities are withholding the names of those injured, reports indicate a family unit was caught in the radius of the explosion. The site remains a restricted crime scene as forensic teams process evidence.

The principality, typically known for its security and status as a haven for the wealthy, is grappling with this unprecedented breach. Prince Albert II characterized the incident as an odious act. Security forces have been fully mobilized to coordinate with French national police.

Minister of State Christophe Mirmand confirmed that surveillance footage provides a clear profile of the individual responsible. Officers are currently reviewing hours of video from surrounding streets to track his precise movements. The search effort has extended into the neighboring French town of Beausoleil.

Medical reports from hospitals confirm the victims sustained injuries from buckshot and hardware found within the device. Two of the victims remain in critical condition while the third, a teenager, is stable. Staff are providing constant updates to the families involved.

The building on Rue Révérend Père Louis Frolla continues to be cordoned off by armed officers. Residents of the area have been evacuated for safety and ongoing forensic sweeps. Investigators are examining the lobby for further remnants of the detonated package.

Political figures from both Monaco and France have condemned the violence. The investigation is now shifting toward determining a motive for such a precise, targeted strike in an area generally immune to this level of crime. Law enforcement agencies are maintaining their perimeter as the search for the fugitive continues.