Gordon Campbell Cousland, father and fiance, killed in Moscow airport suicide attack (VIDEO)

Gordon Campbell Cousland, a Briton who was among eight foreigners killed by a suicide bomber at the Moscow airport Monday, had a baby daughter and was due to marry in April.

Cousland, 39, was among 35 people killed in the suicide attack inside the arrivals hall of the Moscow airport, Domodedovo, on Monday.

Russia's Emergencies Ministry said eight foreign citizens, including two Britons, were among those killed as it emerged that the bomber may have been a woman.

And Russian authorities are facing questions over security lapses after it was claimed that they received a detailed warning about an attack at the airport a week ago.

President Dmitry Medvedev called Tuesday for full security checks to be conducted at all transport hubs and for government officials to be held accountable for any security lapses.

Medvedev — who postponed his trip to the Davos World Economic Forum in Switzerland, where he had been scheduled to give the opening address — said management of Domodedovo Airport must share responsibility for security failures that contributed to the blast, which also injured 180 people. He described security at the airport as "simply a state of anarchy."

And a source told the Interfax news agency that the bombing was the work of a lone man — who succeeded because even though security services were on a terrorist alert, they were looking for a woman.

Airport managers said the inspection of people coming into the arrivals area, where the bombing took place, is the responsibility of transport police.

No claim of responsibility has been made for the blast, but reports suggested that it may indeed have involved a female suicide bomber.

An eyewitness told police that the young woman was dressed in black and the explosives were in the bag or suitcase on the floor next to her, Interfax reported.

A security source told Russia's state-run news agency RIA Novosti that: "The explosion occurred the moment the presumed female suicide bomber opened her bag."

The source added: "The terrorist was accompanied by a man. He was standing beside her and (the blast) tore off his head."

The Foreign Office confirmed Gordon Campbell Cousland, who worked for a marketing firm, was killed in the explosion and it is investigating reports that a second U.K. passport holder had died.

Cousland's brother, Robin, from Sleaford in Lincolnshire, said he was the youngest of five children and was born in the town, The Telegraph reported.

Cousland said: "He was going to Russia yesterday and we heard a blast reported on the radio and thought 'Oh no, he could be involved'.

"We tried to phone his mobile phone and could not get an answer. Normally when he visits a place he is pretty good at phoning to say he has arrived.

"As the evening went on, we heard nothing from him and began to fear the worst.

"Late last night we passed information to the Foreign Office as we thought he was missing and his company were doing the same thing and they couldn't contact him.

"We received word last night about it."

According to his profile on the business networking website LinkedIn, Cousland studied at Newcastle University and the Chartered Institute of Marketing as well as completing a course in teaching English as a foreign language.

President Dmitry Medvedev suggested that anti-terrorism laws were not working. Last night, police were hunting three men believed to be the suicide bomber’s accomplices. The suspects were all from Russia’s mostly Muslim North Caucasus region, including Chechnya, from where Islamist terrorists have launched a series of attacks in the past.

A British Airways flight touched down less than an hour before the explosion and many of its 165 passengers were feared to have been caught up in the carnage as they made their way through the baggage hall and immigration. A BMI flight with 97 passengers on-board landed minutes before the explosion.

One police source told the Interfax news agency that the bombing seemed to be in line with past terror attacks in Russia carried out by Chechens and other Islamic separatists from the North Caucasus. But authorities stopped short of accusing any group; identification of the suspected bomber or bombers will likely require DNA testing, they said.