David McKenzie

Denmark's Thorbjorn Olesen surged to a three-shot lead at the Lyoness Open as heavy rain again halted play prematurely in Austria, while David McKenzie is the leading Australian.

Olesen carded a four-under-par 68 in his second round to move to 12 under for the tournament.

After scoring a flawless eight-under 64 in his opening round, Olesen added five more birdies before dropping his first shot of the tournament on the 15th hole.

The 22-year-old was already back in the clubhouse before heavy rain and the threat of lightning forced officials to stop play prematurely for a second consecutive day, with several players yet to complete their second round at the Diamond Country Club in Atzenbrugg.

France's Thomas Levet is Olesen's closest rival on nine under after two birdies on the back nine gave him a two-under 70 in his second round.

Levet started his day poorly with a bogey but recovered immediately with a birdie on the second hole.

Another birdie and bogey followed on the front nine before the Frenchman put in a much more consistent performance in the second half of his round.

Richard Bland of England is third on eight under with the Netherlands' Wil Besseling, Austrian Bernd Wiesberger and Oscar Floren, of Sweden, tied for fourth a further shot back.

There are six players on six under, including overnight leader Pablo Larrazabal, of Spain, who is midway through his second round.

McKenzie is the leading Australian at five under, while compatriot Wade Ormsby is a further stroke adrift.