Australia is poised to send help to the site of a deadly Papua New Guinea landslide where at 670 people are feared to have been killed. Australia’s Deputy Prime Minister Richard Marles said government officials had been in touch with Papua New Guinea counterparts since Friday, when the landslide occurred. “Ours are two countries which are very, very close together, and in moments of natural disaster, they have been very, very quick to support us, and we are doing the same thing,” Marles told the Australian public broadcaster ABC on Monday. He said the “exact nature of the support” that Austral…