United Nations: Myanmar’s military junta continues to hold more than 1,300 political detainees and has shown no indication it will release pro-democracy leader Aung San Suu Kyi from house arrest, a U.N. official said.

The European Union has given Myanmar until Oct. 8 to release Suu Kyi or face further sanctions. It has already imposed a travel ban on Myanmar’s military leaders and frozen their financial assets in Europe.

“So far there have been no indications when Aung San Suu Kyi will be released,” Paulo Sergio Pinheiro, the U.N. Commission on Human Rights’ special investigator for Myanmar, said in a report made public Tuesday.

Pinheiro said he is also concerned that only a small number of the more than 1,300 security detainees have been freed.

Suu Kyi, a Nobel Peace Prize winner, has been in detention since May 2003, when the military cracked down on her party after a violent clash between her followers and government supporters.

Suu Kyi’s National League for Democracy won a landslide victory in a 1990 general election but was not allowed to take power by the junta, which seized control in 1988 after brutally suppressing mass pro-democracy protests.

Pinheiro said that since the start of the year, he has received several reports “about continuing arrests and harsh sentences for peaceful political activities” in Myanmar, also known as Burma.