The International Committee of the Red Cross is to visit the US naval base at Guantanamo Bay in Cuba, following the deaths at the weekend of three men held at the prison camp there.
Military authorities at the camp have also announced a review of its procedures.
The Red Cross is the only outside agency that has regular access to the prisoners held at Guantanamo Bay.
A delegation from the ICRC normally visits around six times a year to check on the condition of prisoners.
This visit is not part of the regular schedule and follows the suicides at the camp of two Saudi men and one man from Yemen on Saturday.
A spokesman for the ICRC said that if the agency had concerns, it would share them bilaterally with the US.
The ICRC does not make the findings of its visits public.
None of the three men who died was among the ten at the camp who have been charged with a crime under a military tribunal system.
Around 460 men, labelled 'enemy combatants' by the US, are currently held in Guantanamo.
