A suicide bomber in a rickshaw has left at least ten dead in Pakistan's Swat Valley when he tried to enter a courthouse.

Security at the entrance to the building stopped the man, at which point he detonated the explosives he was carrying.

According to eyewitnesses, several women and children were seen burning to death and the blast destroyed several cars around the courthouse and shattered nearby windows.

This latest attack is the third in just two days.

On Friday Pakistan suffered its worst terrorist attack this year when a military convoy was targeted by twin attacks that left over 54 dead.

Throughout Friday night a series of low-intensity blasts caused little damage but created anxiety and some panic in a population expecting the next attack at any time.