Peter Stevenson is Operations Commander for the UK's International Search and Rescue Team
Emergency crews, charities and the UK government are co-ordinating efforts to help with the rescue operation in Haiti after it was hit by an earthquake.
The 7.0-magnitude quake that hit south of the Haitian capital Port-au-Prince is feared to have killed thousands of people across the Caribbean country.
Prime Minister Gordon Brown said he was "deeply saddened" by the disaster and pledged whatever support was needed.
A government spokesman said no British casualties had been reported so far.
A 61-strong team of firefighters from across the UK has volunteered to fly out to the quake zone.
'Know the devastation'
The team will be taking specialist equipment and two search dogs.
But aid from the UK has been delayed after the closure of Gatwick Airport because of the heavy snow and treacherous weather.
Lincolnshire's chief fire officer, Mike Thomas, will act as team leader for the whole of the UK response.
He said many of the team members had helped out in similar situations before and knew what to expect in the rescue operation.
Douglas Alexander promises UK aid to Haiti
"We know the devastation, risks and shock this can have on a community and we'll be there to help as best we can," he said.
Greater Manchester firefighter Peter Stevenson, who will work as operation commander when the volunteers arrive in Haiti, said they would work in two teams to search for survivors.
"One rescue can take between six and 10 hours, depending on the situation and what the building is made from," Mr Stevenson said.
"We go totally self-reliant, with several tonnes of equipment so we can work 24 hours a day on at least two separate sites."
The teams will be using heavy breaking equipment, specialist cameras and acoustic listening devices.
'Window of opportunity'
The group includes volunteers from fire and rescue services in Greater Manchester, Lancashire, West Sussex, Kent, the West Midlands, Lincolnshire, Hampshire, and mid and west Wales.
Cornwall-based international relief charity Shelterbox, which provides survival and shelter equipment in disaster zones, has also mobilised a response team from the UK and the US to assess the aid requirements of victims left homeless by the earthquake.
The firefighters do not know how long they will have to stay in Haiti but a spokesman for Greater Manchester Fire and Rescue Service said they would only have a "small window of opportunity" to try to reach people buried beneath the rubble.
The earthquake caused buildings to topple, trapping people
Mr Brown expressed his sympathy for the victims of the earthquake.
He said: "I am deeply saddened and worried about the reported scale of the earthquake in Haiti.
"I am sending a message of sympathy and support to President Preval and we are sending a team from the Department for International Development to assess the humanitarian needs.
"We stand ready to provide whatever humanitarian assistance is required."
Much of Haiti's nine million population is impoverished and the disaster comes after years of political instability.
The country has suffered a number of recent disasters, including hurricanes and storms in 2008.
The Department for International Development (DFID) is helping to co-ordinate UK aid being sent to Haiti.
Haiti has moved to the centre of the world's thoughts, and the world's compassion
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