Peter Ijeh fired the visitors ahead after just seven minutes, before his dismissal in the 27th minute sparked a remarkable turnaround for the hosts.

Magnus Myklebust (27) instantly drew Lillestrom level, before Bjorn Helge Riise (70), Myklebust (72) with his second and Olivier Occean (86) capped an emphatic win.

To make matters worse Jone Samuelsen was given his marching orders in injury time as the visitors ended with two men short and fell to 11th in the table.

Tromso are up to third after a 1-0 victory over Odd Grenland.

The only goal came after seven minutes from Lars Ivar Strand, who helped his team draw level on 10 points with IK Start.

Stabaek climbed fifth after a late winner from Veigar Pall Gunnarson helped them fight from a goal down to win 2-1 at 10-man Fredrikstad.

John Anders Bjorkoy (24) gave the hosts the lead, but Ismael Fofana's dismissal on the stroke of half-time looked to have shifted momentum.

Gomes da Costa Alanzinho (61) then drew Stabaek level, before Gunnarson hit an 85th-minute winner to complete the turnaround.

Stromsgodset are in sixth place after a 2-1 victory at Rosenborg.

Steffen Iversen (19) opened the scoring for the defending champions from the penalty spot, but two goals in the space of two minutes from Stian Ohr (57) and Ronny Deila (59) helped the visitors recover to claim all the points.

Finally on Sunday, Lyn Oslo were held to a goalless draw at home to Aalesund.