Ecuador has called for a ministerial session of the South American regional bloc UNASUR in Guayaquil on Sunday after its move to grant asylum to WikiLeaks founder Julian Assange, Brazil said.

A foreign ministry source had said yesterday that Brazil has been asked to attend the meeting of UNASUR foreign ministers, but that no decision had been made as to who would represent Brazil — Foreign Minister Antonio Patriota or another official.

The Union of South American Nations (UNASUR) groups Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname and Uruguay.

Ecuador had granted political asylum to Assange yesterday, triggering a diplomatic row with Britain, which angrily insisted it would extradite him to Sweden, where he is wanted for questioning in a sex assault case.