By Mathew Cohen Venezuela's coast guard vessels allegedly entered Guyanese waters on March 1, approaching an ExxonMobil production vessel in the disputed offshore region, Guyana's President Irfaan Ali has announced.

The South American neighbours are involved in a long-running dispute about which country owns the oil-rich Essequibo area Guyanese President Irfaan Ali said on Saturday that a Venezuelan naval vessel had entered his country's waters earlier in the day,

Venezuelan coast guard vessels entered Guyana’s waters near Exxon Mobil Corp.’s offshore drilling site over the weekend and transmitted a radio message claiming it was patrolling a “disputed international” maritime zone.