A parcel or backpack bomb detonated in a residential building on Rue Révérend‑Père‑Louis‑Frolla in Monaco on Monday evening, around 9 p.m. local time (June 29). The explosion injured three people: Ukrainian oligarch Vadym Yermolaiev, a 13‑year‑old teenager, and a couple in their 50s or 60s. Two of the injured sustained life‑threatening injuries, according to dailymail.com. The explosive device was reported to contain bolts and pellets.

Surveillance cameras captured an unidentified man leaving a bag in the building’s entrance before fleeing, as reported by meduza. An aide to France’s Interior Minister Laurent Nunez said police were working to locate the perpetrator, who had fled, according to alarabiya. Monaco’s Minister of State Christophe Mirmand said it was the first time such an act had taken place in the principality, per bluesky.

Prince Albert II described the incident as a “heinous crime” and a “shock to the entire Monegasque community,” according to alarabiya. The Ukrainian Ministry of Foreign Affairs was verifying the citizenship of the businessman injured in the explosion, reported by tass.