From AP, April 29:

HONG KONG — Three pro-Tibet activists who planned to protest during Hong Kong's leg of the Olympic torch relay were deported after they arrived at the territory's airport Tuesday, activists said.

A fourth person, an organizer for an independent Chinese writers' group, was also deported.

It was the second known instance in which activists have been denied entry ahead of the Olympic torch's arrival in Hong Kong on Wednesday. The flame's return to Chinese soil follows a global tour marred by protests against Beijing's human rights record and its recent crackdown in Tibet...

Authorities plan to deploy 3,000 officers to guard the flame, which was carried through Ho Chi Minh City, Vietnam, earlier Tuesday — the last international leg of the relay.

Activists said Kate Woznow and Tsering Lama, organizers of Students for a Free Tibet, and Matt Whitticase, organizer of the Free Tibet Campaign were turned away after arriving in Hong Kong on Tuesday.

Woznow, a Canadian, told The Associated Press she was put on a return flight to New York. Whitticase, a British citizen, was booked on a return flight to London, Free Tibet Campaign spokeswoman Claire Cooper said.

Tsering Lama, an ethnic Tibetan Canadian citizen, was deported back to Toronto, Canada, Students for a Free Tibet spokeswoman Lhadon Tethong said.

Separately, Zhang Yu, general secretary of the Independent Chinese PEN Center, was detained for at least seven hours at the airport before being put on a plane to Paris late Tuesday, Hong Kong Journalists Association general secretary Mak Yin-ting said Wednesday.

Zhang, who is based in Sweden, was planning to attend a four-day writers' and artists' conference calling for freedom of expression in China that coincided with the torch relay, Mak said.

The grounds for the deportations wasn't immediately clear. Hong Kong officials have said repeatedly they won't discuss individual cases.

From AlJazeera, April 29:

South Korea's prime minister has called for "legal and diplomatic measures" to be taken against Chinese students who assaulted Korean protesters during Sunday's Olympic torch relay through Seoul.

Han Seung-Soo said the actions of the Chinese supporting the relay had "hurt national pride".

Han's comments follow mounting anger in South Korea over Sunday's violence in which Chinese students attacked Koreans staging protests at Beijing's human rights record.

The troubles in South Korea followed a string of anti-China protests on various legs of the global torch relay – intended by games organisers as a symbol of unity ahead of the opening of the Beijing games in August.

The flame arrived in Vietnam on Tuesday after a trouble-free leg in North Korea.

Sunday's clashes in Seoul erupted when about 300 protesters, including North Koreans, demonstrated against China's forced repatriation of North Korean refugees and its recent crackdown on unrest in Tibet.

More than 6,000 Chinese demonstrators, mostly college students, had also gathered for the start of the relay in Olympic Park.

In one clash between the groups, Chinese students were seen throwing water bottles, stones, chunks of wood and drink cans at the Koreans.

In another incident, Chinese students surrounded and beat up a small group of protesters, witnesses said.

"It is very regrettable that foreigners staged illegal violent protests at a time when self-restraint against violent protests is taking root under a new government," Kim Kyung-Han, South Korea's justice minister, told the country's cabinet.