Costa Rica has proposed creation of a "humanitarian corridor" for Cuban migrants transiting Central America en route to the United States as their numbers swell at its northern border with Nicaragua.

Costa Rican Foreign Minister Manuel Gonzalez said in a radio interview Tuesday that there are nearly 2,000 Cubans at the border being blocked from continuing their journey north by Nicaraguan soldiers.

Nicaragua forcefully pushed nearly 2,000 Cubans back into Costa Rica on Sunday.

Among them was Dagoberto Fernandez, a mechanic traveling with his pregnant wife. He said Tuesday they had left Ecuador and had no problems until arriving at the Nicaraguan border.

Costa Rica issued transit visas to Cubans in its territory.

Nicaragua accused Costa Rica of violating its sovereignty by allowing the Cubans to leave for Nicaraguan territory.