The family of a Scottish businessman say they fear he may be one of the victims of a bomb attack which has killed 188 people in Bali.

Stephen Speirs, from Bridge of Weir, in Renfrewshire, has not been accounted for since the explosion on Saturday night.

The 36-year-old had been touring the island with the Hong Kong Rugby Club.

The family are very, very upset and can only think that the worst has happened

Kenny Mackenzie

The Hong Kong Rugby Football Union said seven Britons involved with the amateur team were feared dead.

A spokeswoman said six men and one woman were last seen in the nightclub which was devastated by the blast in the resort of Kuta on Saturday.

The expatriates, all living in Hong Kong, were on the island to compete in the Bali-10s tournament.

Kenny Mackenzie, a childhood friend of Mr Speirs, said on Monday that the financial worker had been living and working in Hong Kong for eight years.

"We know that members of the rugby club were caught up in the blast and the family are very, very upset and can only think that the worst has happened," he said

'Assuming the worst'

Speaking on behalf of the family, Mr Mackenzie said there had been no further news about Mr Speirs.

"There is an awful lot of speculation at the moment," he added.

"He is not accounted for at the moment and we are basically assuming the worst."

Stephen Speirs remains unaccounted for

The other British members of the Hong Kong Rugby Club who were last seen in the Sari Club were named as Tom Holmes, 39; Nathaniel Miller, 31; Peter Record, 32; Edward Waller, 26; Clive Walton, 33; and Anika Linden, 29.

The union said that two team-mates - Bettina Brandes, 28, from Germany, and American Jacob Young, 34 - were also unaccounted for following the explosion.

Eighteen British people are believed to have been killed in the explosion and a further 15 are missing, believed dead.

Officials named one of the dead as Marc Gajardo, 30, from Cornwall.

The Foreign Office is urging people to avoid travelling to Indonesia.

Forensic specialists

No-one has claimed responsibility for the attacks, but the US embassy in Jakarta recently issued warnings of possible attacks by Islamic militants linked to al-Qaeda.

A team of British forensic and counter-terrorism specialists are on their way to Kuta to help with the investigation.

Three-quarters of the victims killed in the attack on a beach resort nightclub are thought to be Australians.

The British Consulate in Bali has set up a 24 hour telephone number for people anxious about relatives or friends in Kuta, which can be contacted on 00 62 361 270 572.