European markets slumped at the open
One bright spot is that mining giant Glencore's collapse on Monday hasn't continued - it's up by more than 5%, though that only erases a tiny proportion of the company's 29.42% crash.
The UK's FTSE 100 is down by 1.02% as of 8:20 a.m. UK time (3:20 a.m. ET).
Here's how the rest of Europe is doing
- Germany's DAX: -0.97%
- France's CAC 40: -1.13%
- Italy's FTSE MIB: -0.69%
- Spain's Ibex: -0.60%
Asian markets sold off heavily too - Hong Kong's Hang Seng is down down 3.17%, China's Shanghai Composite down 3.04%, and Japan's Nikkei closed down 4.05%.