Malta will let the rescue ship Lifeline dock after Italy refused it entry, ending the vessel's near-week-long wait in the Mediterranean with more than 230 migrants on board, Italy's prime minister said on Tuesday.

Lifeline said one person had been evacuated for medical reasons and that general conditions on board were worsening.

Malta's offer resolved a standoff with Rome, where a new government, co-led by the anti-immigrant League party, has announced it will no longer let in charity ships that rescue migrants. The ships cover the sea route to Italy, where thousands of refugees have died in recent years.