Photo: ODT filesOne person has died and another is in a serious condition after a crash in Glenorchy this morning, prompting a "firm message" from Southern police. Police staff, including the Serious Crash Unit, are at the scene and the road is partially blocked. The message follows a tragic weekend, with two fatal crashes in Southern District between 7am Friday and 7am this morning. The other fatal crash occurred in Port Chalmers, while there were critically injuries in an Outram crash and serious injuries in a motorcycle accident near St Bathans. It is expected to significantly increase traffic volumes throughout the wider Southern District.