More than 30 African heads of state have gathered on Sunday for an African Union summit in Kampala, the Ugandan capital.

The leaders urged for a united front against al-Shabab, a Somali-based group responsible for a recent bombing in Kampala that claimed 70 civilian lives.

But some warn that upping the fight with al-Shabab could play into the groups' hands.

Andrew Simmons reports from Kampala.

[July 25, 2010]