T HE US, British and Australian Embassies updated their travel advice for tourists coming to Cambodia in the wake of kidnapping threats made on Khmer Rouge radio.

Both the British and Australian Embassies for the first time warned tourists not to attempt any travel outside Phnom Penh.

The advice is mainly aimed at newcomers to Cambodia and the Australian and British Embassies said that Westerners living or working outside the capital should make their own decisions about travel based on localized information and their experience.

In its advice the British Embassy said: "Owing to the deteriorating security situation in Cambodia, British visitors are strongly advised not to travel outside Phnom Penh. Under no circumstances should visitors attempt to enter Cambodia by land from Thailand."

The US Embassy advisory does not rule out tourists travelling to Angkor Wat and Siem Reap.

It adds: "Train travel is not considered safe. Inter-city boat travel should be restricted to the fast boasts to Kompong Cham and Kratie."

Franck Gellet, the French Embassy's spokesman said specific advisories are not issued but notices in hotels request tourists to contact the mission for up to date travel information.