Guatemala said on Sunday it would postpone President Jimmy Morales' visit to Washington to discuss Guatemala's potential designation as a 'safe third country' for asylum seekers, stressing it had no plans to sign such an agreement. 

The planned meeting between Morales and U.S. President Donald Trump this week had been postponed until the Guatemalan Constitutional Court rules on legal challenges, said a Guatemala's statement. 

Last week, five former senior officials appealed to the court to block any agreement with the U.S. that would declare Guatemala a 'safe third country.' 

Under such a deal, Guatemala would be obliged to offer asylum to migrants who entered its territory en route to the United States. Migrants from Honduras and El Salvador heading to the U.S.-Mexican border overland usually cross into Mexico via Guatemala. 

"The government of the republic reiterates that at no point it considers signing an agreement to convert Guatemala into a safe third country," said the Guatemalan government.

A senior U.S. official said: "The meeting is being rescheduled," adding that "the United States will continue to work with the Government of Guatemala on concrete and immediate steps that can be taken to address the ongoing migration crisis."