Sudan's paramilitaries kill more than 30 in new attack on Darfur / Sudan's paramilitaries kill over 30 in a fresh attack on a Darfur city, activists say / Clashes in Sudan's besieged Darfur city kill 57 civilians / Sudan paramilitaries kill at least 100 people in Darfur attack, UN says / Darfur air strike kills over 100 in Sudan's escalating conflict: pro-democracy group / Thousands still fleeing Sudan conflict daily, one year on: UN / More than 10 million displaced by Sudan conflict, says Unicef / Sudan conflict spreads to key humanitarian safe haven