At least three people were injured in what authorities described as an intentional “attack” At least three people were injured after a backpack bomb exploded outside a residential building in Monaco on Monday evening. A manhunt was launched after the blast, with the suspect still at large.The blast occurred shortly before 9pm on Rue Révérend-Père-Louis-Frolla, a street in the principality near the French border.A suspect was allegedly caught on CCTV leaving a backpack near the entrance to the building just as several people were entering, before fleeing on foot toward Beausoleil, a French commune bordering Monaco.At least three people were injured, two of them seriously, while a third sustained minor injuries. Police sources cited by BFMTV and other outlets said the victims were of “Ukrainian and Russian origin.” 🇲🇨 ALERTE - Attentat à la bombe ce soir à #Monaco, près de la place des Moulins. Plusieurs victimes.De nombreux secours convergent sur les lieux. Un suspect est activement recherché, il a été aperçu sur les caméras de vidéosurveillance en train de déposer un sac à dos. pic.twitter.com/dko4LYev8J— Infos Françaises (@InfosFrancaises) June 29, 2026 The explosion was powerful enough to be heard several blocks away. Emergency services rushed to the scene, with five vehicles and 14 firefighters from the Alpes-Maritimes department called in as reinforcements, according to SDIS 06. 🇲🇨 ATTENTAT À MONACO : Au moins trois blessés dont deux graves. Le plan rouge a été déclenché. Des sapeurs-pompiers des Alpes-Maritimes ont été appelés en renfort. https://t.co/hv3j2mTur8 pic.twitter.com/GOW0fG8tg3— Infos Françaises (@InfosFrancaises) June 29, 2026 Monaco authorities also activated the “red plan,” an emergency response protocol used in the event of a sudden incident causing multiple casualties.Eric Ciotti, the mayor of neighboring Nice, described the incident as an “attack.”“The attack carried out this evening is a tragedy that strikes Monaco,” Ciotti wrote in a post on X. “Thoughts for the victims, their families, and the people of Monaco. Total support for the security forces and emergency services mobilized.”DETAILS TO FOLLOW