The visitors should have led inside five minutes when an unmarked Neill Byrne somehow headed over from two yards out.

Town went close on 10 minutes, Callum Marshall firing narrowly wide, as Luton had the ball in the net on 27 minutes only to see referee Matthew Russell to disallow it for what he deemed a foul by Mads Andersen.

Kal Naismith was denied by the legs of keeper Tommy Simkin and Luton broke the deadlock on 44 minutes, with Kasey Palmer’s shirt pulled by Jamie Sterry in the box and Marshall netted the resulting penalty.

After the break Luton had a second on 51 minutes when Jake Richards teed up Donley to slam home.

Town hunted a third with Richards shooting straight at Simkin, while Marshall was wide from 25 yards with Mendel and Palmer both off target too.

It was 3-0 on 72 minutes when Donley doubled his account after Doncaster could not clear Richards’ cross.

Rovers substitute Bayley McCann looped a header with six minutes left, but Town claimed a third successive victory to climb to eighth.