The incident comes at a time of heightened tensions between Washington and Havana.

Dmitry Lyubinsky says US steps drive Cuba "to the edge of an energy crisis"

A US-imposed fuel embargo has threatened to spark a humanitarian crisis in Cuba, whose energy grid relies on fossil fuel

As Maria Zakharova stressed, the move is aimed at escalating the situation and triggering conflict

The incident comes at a time of heightened tensions between Washington and Havana.