In Pakistan, at least 13 people were killed and seven were injured today in a fresh gun battle between two rival groups over distribution of irrigation water in Kurram. Armed members of Shalozan and Tangi tribes clashed again today.The clashes over the allocation of irrigation water began three weeks ago and 50 people have died while over 70 injured so far. Kurram tribal agency is virtually cut off from the rest of Pakistan for the past two years due to intense clashes between rival Shia and Sunni tribesmen.