Cuban authorities have said they thwarted what they described as an infiltration attempt after a group of individuals arrived on the island aboard a speedboat originating from the United States.

According to officials in Havana, the vessel approached Cuba’s northern coastline before security forces intercepted those on board.

State media reported that the individuals were detained and that weapons and equipment were seized, though the full circumstances surrounding the voyage remain under investigation.

Authorities characterised the incident as an illegal entry operation organised outside the country, adding that it posed a threat to national security.

Officials did not immediately provide detailed information about the number of people involved or potential affiliations, but said the case would be handled under Cuban law.

The development comes amid heightened migration flows between Cuba and the United States, with thousands of Cubans attempting sea crossings in recent years amid economic hardship.

U.S. authorities have repeatedly warned of the dangers of maritime migration, particularly involving privately operated vessels departing from Florida.

Cuban officials said they would communicate with U.S. counterparts through established diplomatic channels regarding the incident.

Washington has not publicly confirmed the details described by Havana.

Security analysts note that isolated maritime incursions have periodically strained relations between the two countries, particularly when linked to political activism or anti-government activity.

The latest episode is likely to prompt renewed discussion over coastal security, migration enforcement and bilateral cooperation mechanisms.

Further information is expected as investigations continue and as both governments clarify the facts surrounding the attempted landing.