INVERNESS, SCOTLAND - JULY 13: Alexander Noren of Sweden tees off on the 6th hole during the second round of the Aberdeen Asset Management Scottish Open at Castle Stuart Golf Links on July 13, 2012 in Inverness, Scotland. (Photo by Dean Mouhtaropoulos/Getty Images)

Inverness Scotland – Alexander Noren of Sweden shot a second straight 6-under 66 at the Scottish Open to take a one-stroke lead midway through the second round on Friday.

Noren, who turned 30 on Thursday, made six birdies and an eagle at Castle Stuart to move clear of big-hitting Argentine Ricardo Gonzalez (64) on 12 under. S.S.P. Chowrasia of India is on 10 under after a 67.

Former No. 1 Martin Kaymer bogeyed two of his last three holes for a 68, dropping back to a share of fifth place on 9 under. Phil Mickelson shot a 64 to lie five shots off the pace.

Noren, ranked No. 89, moved into contention for the £416, 660 first prize the day after his girlfriend, Emelie, won a women's tour event in Norway. – Sapa-AP