Northern Territory Police say an altercation involving edged weapons in Darwin's northern suburbs yesterday afternoon has left a 14-year-old girl and 27-year-old man in hospital. Starting at Casuarina bus interchange, the incident is one of three alleged assaults in the area in the past week. It comes as the NT Government explores phasing out bus interchanges altogether, in an attempt to address what they say are hot spots for anti-social behaviour.