article_snippet.sent: Huge disaster," Dr. Nima Namgyal said hours later, warning that the death toll could skyrocket if helicopters didn't come quickly to evacuate those hurt.
article_snippet.sent: Much more badly injured.
article_snippet.sent: More to die if not heli asap."
article_snippet.sent: And even hours after the biggest quake struck, the threat of more casualties -- and the challenge of finding out how high the death toll actually is -- remained very real.
article_snippet.sent: This also makes it more difficult to search for people.
article_snippet.sent: But some are trapped above the icefall, "which is very dangerous anyway," Jim Whittaker told CNN.
article_snippet.sent: So there is always a risk of death.