What is that sea 'monster' that washed up on Indonesia's shores? Mystery solved

PHOTO: YouTube

A giant sea creature washed up on a shore in Indonesia, perplexing residents and authorities as to what it could be. 

Many called it a sea 'monster' as it measured 15m by 7m and it oozed a mysterious red liquid - which was really just blood. Lots of it, if you think about it logically, considering the size of the creature. 

So what is it? Watch to find out.