By alley - Jan 14, 2015, 4:01 PM ET

Dakar: Al-Attiyah extends lead, Roma crashes

Nasser Al-Attiyah took a dominant victory on stage 10 of the 2015 Dakar Rally, as X-raid Mini teammate Nani Roma spectacularly crashed out.

Al-Attiyah's fourth stage win of the event boosted his advantage to more than 28 minutes with main rival Giniel de Villiers dropping over four minutes with the fifth-fastest stage time. But while the run from Calama to Salta put a further dent in Imperial Toyota de Villiers' victory bid, it was absolutely disastrous for 2014 Dakar winner Roma.

Roma's '15 event had already been ruined by an oil-pump problem on the first stage, but he had

won his first stage of this year's edition

on Tuesday before rolling several times 120 miles into the 534-mile run on the 10th day. He and his co-driver were reported unhurt.

Al-Attiyah's nearest opposition came from Orlando Terranova, whose overall rally bid was thwarted on day four, with the third X-raid driver coming through 1m28s slower than his teammate.

Despite de Villiers' having a muted run to fifth the South African remains second overall, almost 15 minutes clear of fellow Toyota driver Yazeed Al-Rajhi, who was third-fastest on stage 10.

Peugeot's difficult Dakar improved slightly, with Stephane Peterhansel ninth quickest and rising to 11th on the leaderboard.