Police in southern Nicaragua say they have found the bodies of eight people believed to be migrants who drowned.

National police say the bodies of seven men and a woman who appeared to be pregnant were found between Monday and Tuesday in Lake Nicaragua near the mouth of the Sapoa river, close to the border with Costa Rica.

Authorities are working to identify the dead.

Hundreds of migrants from Africa have been stuck in neighboring Costa Rica after Nicaragua closed its borders to people without the required travel documents in March.

Migrants have increasingly been trying to traverse the Central American region to get to the United States.