US military says it has fired on a ship in Gulf of Oman to enforce its blockade of Iranian ports

(AP) - The U.S. military said Tuesday that its forces fired on a Panamanian-flagged ship in the Gulf of Oman that tried to evade the American blockade on Iranian ports, a move that comes as President Donald Trump tries to keep economic pressure on the Islamic Republic.

U.S. Central Command said the vessel had ignored warnings to stop, prompting an American helicopter to fire missiles into the engine room of the M/V Vela Nova, disabling the ship. U.S. Central Command's statement does not say whether the ship's crew suffered any casualties.

Central Command said it has redirected 55 commercial vessels attempting to run the blockade, disabled three non-compliant vessels and boarded two. The U.S. Navy currently has more than 15 warships, including two aircraft carriers and an amphibious assault ship, stationed in the waters of the Arabian Sea.

Six people were killed Tuesday by Houthis firing missiles on a vessel in the Bab el-Mandeb strait, Yemeni authorities said.

Yemen's coast guard said the dead included four crew members and two members of the government-allied National Resistance Forces. Houthis fired three ballistic missiles at the Yemeni commercial vessel, according to the Transportation Ministry of Yemen's internationally recognized government.

They are the first known deaths from Houthi attacks on shipping off Yemen in the latest bout of fighting in the Arab country.

"Yeah, they can make trouble," Trump said, "but they're broke."