OSLO, Norway (AP) _ Activists accused Norway of adopting Chinese-style repression Thursday by clamping down on free speech to protect China's president from criticism as he began a state visit.

President Jiang Zemin's three-day visit is to focus on trade and business matters. However, the 2,000 people watching the president's black limousine roll up the hill Thursday to Oslo's royal palace included Tibetan monks and others who question China's human rights and nuclear policies.

Police stunned many Norwegians when they removed protest banners and ordered demonstrators to cover up T-shirts bearing protest slogans.

``These limits on free expression are shameful,'' said John Peder Egenaes of Amnesty International, which last month published a list of 2,000 victims of Chinese human-rights abuses.

``Despite everything going on in China, it just seems that countries bend over backwards to make sure nothing irritates Jiang,'' he said after Amnesty's peaceful demonstration was stopped.

Oystein Alme, 35, of the Norwegian Tibet Committee said he was threatened with arrest unless he covered up a T-shirt that said ``Human Rights in China.''

``I'm shocked that Norwegians are not allowed to wear whatever T-shirt they want,'' said Alme.

Greenpeace unfurled a 20-foot banner saying ``Stop nuclear testing.'' China has so far refused to sign a nuclear test ban treaty.

``We had it up for about 20 seconds,'' said Kalle Hesstvedt of Greenpeace Norway. He said police ordered the banner removed and detained activists until the motorcade passed.

A police spokesman said the officers were merely enforcing regulations banning protests on the palace grounds.

Norway's Prime Minister Gro Harlem Brundtland said she would raise Tibetan and human rights issues when she meets Jiang on Friday. Tibet's exiled spiritual leader, the Dalai Lama, accepted the 1989 Nobel Peace in Oslo, bringing furious protests from Beijing.

In an editorial, the Oslo newspaper Dagbladet said the wish for good economic ties was understandable but also demanded ``public Norwegian criticism of China's Tibet policies in connection with the visit.''

Doing business with China promises enormous economic rewards. The Norwegian Export council said contracts worth more $53 million to Norway would be signed during Jiang's visit.

After two days in Oslo, Jiang travels to Norway's west coast city of Bergen, and then on to Romania, Uzbekistan, Kyrgyzstan and Kazakstan.