Sri Lanka, Oct. 29 -- UN Secretary-General Antonio Guterres on Wednesday expressed deep concern about Hurricane Melissa's "widespread devastation" in the Caribbean, pledging full support to affected nations.

"The Secretary-General is gravely concerned as Hurricane Melissa - one of the most powerful Atlantic hurricanes ever recorded - unleashes widespread devastation across the Caribbean," spokesperson Stephane Dujarric said in a statement.

Saying that "the hurricane made landfall Tuesday in Jamaica, bringing catastrophic rain and wind, before it travels onward to Cuba and the Bahamas," the statement added that the storm "is also triggering flooding in the Dominican Republic and in Haiti."

"The Secretary-General stands in solidarity wit...