Donald Trump’s latest travel ban could cause problems to seafarers of targeted nationalities, a New York-based law firm says.

The revised order signed by the US president yesterday introduces restrictions on travel to the US from Iran, Libya, Somalia, Sudan, Syria and Yemen.

Nationals from those countries will be denied entry for 90 days from 16 March, so crew on ships visiting US ports will not be able to obtain visas in that period.

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