The US Coast Guard has been called to evacuate injured seafarers from vessels in two separate cases within 24 hours of each.
In one instance it airlifted a 26-year-old man from a Anthony Veder LPG tanker about 195 nautical miles south-southeast of Southwest Pass, Louisiana.
The USCG said it received a report that the crewman aboard the 35,130-cbm Prins Alexander (built 2002) was suffering jaw pain.
