Navy : Marines heading to scene of standoff , Gen. David Jones says . Maersk also leaves scene with armed detail as negotiations for captain continue . FBI assists in negotiations with pirates with Capt . The U.N. agency said its portion of the cargo included nearly 4,100 metric tons of corn-soya blend bound for Somalia and Uganda , and another 990 metric tons of vegetable oil for refugees in Kenya . Richard Phillips in lifeboat . U.S. Navy warned that pirates limited range of operations .
Navy : Marines heading to scene of standoff , Gen. David Jones says . Maersk also leaves scene with armed detail as negotiations for captain continue . FBI assists in negotiations with pirates with Capt . Richard Phillips in lifeboat . U.S. Navy warned that pirates limited range of operations .