The American military says Somali pirates have left two boats they had hijacked in the waters off the Horn of Africa.
The newly liberated vessels are under U.S. Navy escort farther out to sea, where naval personnel will later board the vessels and treat the 24 crew members.
A spokeswoman says the Navy is in radio contact with pirates aboard three other ships in the region, encouraging them also to leave those ships and sail back to Somalia.
The spokeswoman says no shots were fired during the incident.
The U.S. has now intervened four times in one week to help ships hijacked by Somali pirates.