Pirates operating in creeks and waterways of Nigeria's oil rich Niger Delta kidnapped the sailors in a raid, military spokesman Lt Colonel Onyema Nwachukwu said.
Nwachukwu said the sailors were aboard oil vessel, Antigua and Barbuda-flagged MV City of Xiamen.
The sailors, included three from Sri Lanka, one from Russia and one from Myanmar, media reports said.
The abduction took place in Brass Local Government Area of Bayelsa state in the southern part of the oil rich African country.
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The total number of sailors abducted in the last four days now stands at 14.
Attacks on ships is common in Nigeria's oil rich region and in most cases the purpose is kidnapping for ransom while in other cases, oil theft could be the motive.
Last December, five Indians were abducted by heavily armed pirates who attacked the vessel Medallion Marine, off the coast of Niger Delta and commercial capital Lagos. They were released after a month.