Following is a video showing how rapidly a sand carrying, self propelled boat capsizes. The boat crosses, what appears to be a river near Dongying city in china, at a constant speed, when the sand appears to tilt to one side, causing the boat to capsize within seconds.
On 21st October, when this video was uploaded to liveleaks, China news reported a sand boat capsizing. It also mentioned one man being rescued and five more missing. The details linking the two are yet to be confirmed.