21 June 2015 at 0806 GMT the GEOS International Emergency Response Coordination Center (IERCC) received a 911/SOS alert from a SPOT device in Lake Argyle, Western Australia.  IERCC personnel contacted local emergency services and informed them of the activation. SAR personnel responded to the location and transported a male who appeared to be suffering from a heart attack.  The individual was transported by ambulance to the nearest hospital where he was treated for his condition.