According to witnesses in Burma, junta arrested other three pro-democracy activists on Wednesday as the U.N. human rights envoy, Paulo Sergio Pinheiro, meets with Burma leader in Naypyidaw.

The three young men were detained as they were distributing anti-government pamphlets in a fruit market in Rangoon. At that time Pinheiro was just preparing for a meeting with Burmese foreign and labour ministers, Aung Kyi, Guardian Unlimited reports.

Their arrest is followed by the detention of a woman yesterday in Rangon. The woman was Su Su Nway, a female activist, and she was detained as she was trying to put a protest pamphlet near Mr. Pinheiro’s hotel.

U Gambira, leader of the All-Burma Monks Alliance, has also been seized.

Pinheiro is here in order to investigate the abuses carried on the pro-democracy activists in the September crackdown.

His visit follows up the one of U.N. special envoy Ibrahim Gambari, who ended his trip to Myanmar last week with high hopes saying that the junta is making progress.

He also mentioned that the government was ready to hold negotiations in order to move toward democracy.

Still, many doubt the fact that the junta changed its mind. The U.S. said that if the promises that were made to Mr. Gmabri are not held, Myanmar will be sanctioned.

Mr. Gamabri was denied a meeting with Than Shwe, the regime’s leader, on his last visit.

The US ambassador to the UN, Zalmay Khalilzad said: “What has happened does not reflect a fundamental shift. We are of the view that both pressure and engagement have to be on the table ... we do not rule out sanctions. The military regime’s so-called ‘road map to democracy’, which excludes Burma’s democratic and ethnic minorities groups from equal participation, is demonstrably inadequate.”