a href="/myfiles/Images/2015/08/30/wr05_big.jpg" title="Supporters of pro-democracy group "Bersih" (Clean) gather along Jalan Tun Perak in Malaysia's capital city of Kuala Lumpur on Saturday. — Reuters" Supporters of pro-democracy group "Bersih" (Clean) gather along Jalan Tun Perak in Malaysia's capital city of Kuala Lumpur on Saturday. — Reuters KUALA LUMPUR — Thousands of protesters gathered in Kuala Lumpur on Saturday for a rally to demand the resignation of Prime Minister Najib Razak, bringing to the streets a political crisis over a murky multimillion-dollar payment made to an account under his name. The Malaysian leader has weathered weeks of attacks since it was reported that investigators probing the management of debt-laden state fund 1Malaysia Development Berhad (1MDB) had discovered the unexplained transfer of more than $600 million. Protesters hope to spark a people's power movement forcing Najib out, but political analysts doubt he will be toppled. Security was tight and access to a square where protesters were planning to converge was blocked, with several anti-riot trucks and a water cannon parked nearby. The Malaysiakini news portal said 50,000 people had gathered by mid-afternoon but police put the crowd at half that number. The mood was festive as protesters carrying “Out, Najib, Out” placards honked plastic horns and shouted “bersih!,” a Malay word for “clean.” Bersih is also the name of the pro-democracy organization behind the two-day rally in Kuala Lumpur and the two main cities on Malaysia's side of Borneo. “We the Malaysians want to clean up this country, we reject dirty politics,” said Tinagar Veranogan, a demonstrator in a crowd of predominantly young people who were mostly from the ethnic Indian and Chinese minority communities. The Star daily said on Thursday the army could intervene if the protest gets out of hand and a state of emergency is declared. A military spokesman declined to comment. City authorities rejected an application by Bersih for a protest permit, raising fears of a repeat of a 2012 rally when police used water cannon and teargas to disperse protesters. The government has blocked access to Bersih's website and banned wearing of its signature yellow T-shirts, although the swelling crowd was a sea of yellow. “For 58 years people have been patient with bribes, a political system that cannot resolve 1MDB,” Bersih leader Maria Chin told protesters. “Today we say we want reformation.” Amnesty International urged Malaysia's government to listen to the protesters instead of trying to suppress them. “There are huge frustrations with a number of endemic rights issues in Malaysia at the moment — the crackdown on freedom of expression by the government must end,” Josef Benedict, Amnesty International's Deputy Campaigns Director, said in a statement. Najib was not in Kuala Lumpur as the protest got underway. The Bernama national news agency quoted him as saying from the eastern state of Pahang that the patriotism of the rally organisers and participants was “shallow and poor.” Analysts say the Bersih movement is unlikely to inspire broad public support because it lacks strong leadership. Ibrahim Suffian, director of independent pollster Merdeka Center, said discontent with Najib, who took office in 2009, is concentrated in urban areas and a national survey this month by his group showed a slight majority opposed the rally. Malaysia's anti-graft agency has said the funds paid into Najib's account were a donation from the Middle East, which came just before a 2013 election, but the identity of the donor has not been revealed. Najib, 62, has denied wrongdoing and says he did not take any money for personal gain but has tightened his grip on power through a series of steps to sideline would-be dissenters. He sacked his deputy and other ministers who had publicly questioned him, and the attorney-general who was investigating 1MDB was replaced. Authorities suspended two newspapers and blocked access to a website that had reported on 1MDB. Najib retains significant support from the long-ruling Barisan Nasional coalition and from his party, the United Malays National Organization that represents the Malay majority. The coalition, in power since 1957, lost the popular vote for the first time in 2013 to an opposition alliance that split this year. — Reuters