LONDON — Euro zone inflation hit its highest level in 13 years in September, as the bloc battles surging energy costs.Headline inflation came in at 3.4% last month, according to preliminary data from Europe’s statistics office Eurostat. This was the highest level since September 2008 when inflation stood at 3.6%. It comes after German consumer prices rose by 4.1% in September — the highest level in almost 30 years.The rise has been driven higher by surging energy prices, deepening concern among policymakers. The front-month gas price at the Dutch TTF hub, a European benchmark, has risen almost 400% since the start of the year.What’s more, this record run in energy prices is not expected to end any time soon, with energy analysts warning market nervousness is likely to persist throughout winter.cnbc.com