Paramilitary shelling kills over 30 in besieged Sudan city / 2 killed as Sudan's paramilitary intensifies attacks on displacement camp in North Darfur / Sudan paramilitary attack kills 50, activists say / 50 killed in Sudan paramilitary attack / Sudan military's strike on market in capital kills at least 23: Rescuers / Heavy fighting in Khartoum as Sudan army pushes to retake paramilitary positions / Sudan military offensive sparks new fighting in Khartoum as cholera outbreak worsens / Sudan's paramilitary fighters killed 85 people in an attack on a central village, residents say