A tsunami triggered by a magnitude seven-point-five earthquake has hit a city in Indonesia.<br />Officials in the city of Palu on Sulawesi island have reported five deaths, but it's not clear whether they died as a result of the tsunami or the quake.<br />The local disaster agency says houses have been swept away and families are missing so the death toll cause rise sharply.<br />Following the earthquake, several strong aftershocks, including one of magnitude six-point-seven, hit. <br />
