Hundreds of jellyfish have been washing up dead on a beach in Indonesia.<br /><br />Video filmed on Friday (August 9) shows jellyfish every few feet along Erong beach in West Sumatra.<br /><br />Ulung Jantama Wisha, a researcher with the ministry of marine affairs and fisheries, said the cause was unknown. He said: "It could be from the influence of the environment; it could be from [their] efforts to find food; it could also be due to the strong currents that [they became] stranded; it could also be due to the influence of climate."<br /><br />"We will conduct research here so we can determine the cause of this incident," he added.<br /><br />Jellyfish dry up quickly when washed up on a beach.<br /><br />The phenomenon is likely to have a negative impact on local fishermen and the tourist trade.