Four coalition troops have been killed by a bomb in southern Afghanistan, officials said today.

A coalition statement said two more soldiers were seriously wounded when the bomb went off today as they conducted operations in the southern province of Kandahar.

The coalition did not release the nationalities of the victims.

Afghanistan is seeing a resurgence of violence even as the US and Nato have poured thousands of new troops into the country.

Last year, more than 8,000 people were killed in insurgency-related attacks in Afghanistan – the most since the 2001 invasion – and violence has claimed more than 1,500 lives this year.

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08/02/2010: Britain's Afghan death toll now level with Falklands
02/02/2010: Two British soldiers killed in Afghanistan
01/02/2010: Karzai offers olive branch to Taliban fighters
28/01/2010: Brown sets 2011 deadline for turning tide against Taliban
28/01/2010: UN mission chief slams 'flaws' in Afghan strategy
28/01/2010: Afghanistan conference opens in London
27/01/2010: Australian faces execution over Afghan murder
26/01/2010: Suicide bomber attacks US base in Afghan capital
26/01/2010: Four Afghanistan police killed in checkpoint attack
25/01/2010: Nato general seeks peace deal with Taliban
20/01/2010: Kabul security tightened
18/01/2010: Afghan police locked in gun battle near presidential palace
16/01/2010: Afghan parliament rejects most of Karzai's choices for Cabinet
13/01/2010: Afghan civilian death toll soars
13/01/2010: US troops and Afghan police killed in blasts
11/01/2010: Nato loses six troops in Afghanistan
10/01/2010: Afghanistan war 'under-resourced for years', says head of UK army
10/01/2010: British journalist killed in Afghanistan blast
10/01/2010: Afghans agree air base jail handover