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.

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