fuel

The couple were absent from David Beckham's 50th birthday celebrations and did not post a birthday message online, fuelling the intrigue.

Adding fuel to the fire that same year, Theresa May - home secretary at the time - shared a story during party conference about a Bolivian man who avoided deportation because of his pet cat.

He says: "We repeatedly found seedlings and adults with juvenile root structures near decaying logs, not scattered randomly in the forest. That recurring pattern inspired us to test whether deadwood fungi fuel orchid beginnings."

Ukraine has dramatically increased the number of attacks launched against Russian oil refineries in recent months, sparking fuel shortages and price rises in some parts of the country, the BBC has found.

And once such a fire breaks out, it is particularly hard to fight because of how readily available fuel is within a refinery, said Casey Snow, El Segundo Fire Department division chief.