Behold the "Dragon Hole." Scientists have discovered what's being described as the world's deepest underwater sinkhole in the South China Sea. http://cnn.it/2ab1tgt | CNN

Tunnelling works were paused after a giant sinkhole opened up on a sports field in Melbourne’s northeast on Monday (Jan 5). The five-metre-deep sinkhole emerged near two tunnel boring machines working on the North East Link tunnel project, a major road infrastructure development. Australian transport officials said no injuries or property damage were reported. Emergency authorities have closed the field and declared the area off-limits as investigations begin. #melbourne #australia #australianew