Police in the southern India state of Andhra Pradesh say they have killed ten suspected Maoist guerrillas. It is the most violent clash since the rebels withdrew from peace talks with the state government in January. The police said two senior Maoist leaders were among those killed in the clashes in Nizamabad district. The rebels have been fighting since 1980 for the creation of a communist state. Violence has escalated in recent months following the collapse of talks. The Nizamabad police chief N Madhusudhan Reddy told the BBC that clashes took place near Manala after the police asked the rebels to surrender. Rebel leaders Ramesh -also known as Venkata Swamy - and Babanna were among those who were killed in the