A Ukrainian oligarch and his family were injured on Tuesday after a bomb exploded in Monaco, prompting an immediate manhunt by authorities.

The blast, caused by an explosive device, appeared to contain bolts and pellets, the head of Monaco's government confirmed. The incident occurred in the principality, a highly secure jurisdiction known globally for its wealthy residents.

Emergency services responded swiftly to the scene, tending to the injured individuals. The prominent Ukrainian businessman and his relatives required medical attention following the attack.

Monaco's government leader provided details on the nature of the device. This rare act of violence has sparked a comprehensive search operation across the tiny city-state.

Authorities have not yet released the identities of those injured, nor have they indicated a potential motive behind the bombing. The involvement of a Ukrainian national living abroad may draw attention given the ongoing geopolitical situation.

Investigators are now working to determine who was responsible for planting the explosive device. The high-profile target and the method used suggest a deliberate and premeditated attack within the usually tranquil principality.

Security forces are coordinating their efforts to trace the perpetrators. The investigation continues into this unusual and serious security breach in one of Europe's most exclusive enclaves.