Two explosions ripped through a market in Nairobi earlier today, killing 10 people and injuring 70 more in the latest in a string of increasingly frequent terror attacks.

It was not immediately clear who was responsible for the attack but the capital has been besieged with attacks by the al-Qaida-affiliated Islamist group al-Shabaab.

The group are waging an insurgency against the Kenyan government because of the presence of Kenyan troops in neighbouring Somalia.

The attack comes just a day after British officials warned tourists to leave the coastal resort of Mombasa because of a heightened risk of terrorism.

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A woman walks near a damaged vehicle at the scene of twin explosions at the Gikomba open-air market in NairobiReuters
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Police inspect a damaged public transport van after the blasts at the Gikomba open-air marketReuters
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Traders who were injured in a twin explosion are evacuated from the Gikomba open-air marketReuters
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Kenyan police stand guard at the scene of the explosions in NairobiReuters
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Abandoned second-hand clothes are piled at the scene of twin explosions at the Gikomba open-air marketReuters
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British tourists queue at the departure gate as they are evacuated from Moi International Airport in the Kenyan coastal city of MombasaReuters
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An injured man shows his wounds at a hospital near the scene of the explosionAFP
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Police investigators comb through the scene of an explosion on the outskirts of Nairobi's business districAFP