The blue-chip FTSE 100 index added 0.5% at 7:07 GMT, as the commodity heavy gauge got a boost from energy and mining stocks. Europe's STOXX 600 climbed 0.2%, with investors looking ahead to a key U.S. inflation data. [O/R] [MET/L]

Data showed Britain's economy grew less than expected in July, with a fall in power production possibly reflecting the sharp climb in energy tariffs and the construction sector also hit by a leap in inflation.

Mining stocks gained 1.9%, tracking firm metal prices on supply risks in China and a weaker dollar that made the greenback-priced metals cheaper for holders of other currencies. [MET/L]

Energy stocks climbed 0.8%.

The mid-cap FTSE 250 ticked 0.2% higher.

Betting group Entain Plc slid 1.3% after Australia's financial crimes regulator said it would be investigating the firm's compliance with the country's anti-money laundering and counter-terrorism financing laws.

Cineworld Plc climbed 6.7% after a U.S. bankruptcy court had granted it access to up to $785 million of an about $1.94 billion financial aid it had secured from existing lenders.

(Reporting by Johann M Cherian and Bansari Mayur Kamdar in Bengaluru; Editing by Saumyadeb Chakrabarty)