There's a guy on the beeb who said helped to try and put the fire out & they had to go next door to Subway to borrow a fire extinguisher.
I thought it was a legal requirement for extinguishers in a retail location , laughable that a vape shop wouldn't have any. Guess when your busy money laundering, you don't have time for Health and Safety.
Unfortunately it appears to have been a water based extinguisher and probably made the problem worse, there's footage of him using it and then a massive flare up.
Water + lithium batteries do not mix, pretty sure it literally makes them explode.