Cuba has started releasing some prisoners as part of talks with the Vatican, a day after President Joe Biden’s administration announced his intent to lift the U.S. designation of Cuba as a state sponsor of terrorism.

Biden’s move just before he leaves office highlights his extremely cautious—and, in effect, hardline—approach to U.S.-Cuba policy.

Mr Biden’s intention to lift the US designation of Cuba as a state sponsor of terrorism is likely to be reversed as early as next week after President-elect Donald Trump takes office and secretary of state-designate Marco Rubio assumes the position of America’s top diplomat.