Match ends, Colchester United 2, Scunthorpe United 2.
Colchester's relegation fears intensified after Scunthorpe scored a last minute equaliser.
Hakeeb Adelakun's looping stoppage-time leveller denied the U's a first win in three League One games.
Theo Robinson's effort into the top corner gave the visitors the lead before Tom Eastman levelled from six yards after the Iron failed to clear.
Chris Porter thought he had one it with his late goal but Adelakun replied with time almost up.
A win for Colchester, who are still second-from-bottom of League One, would have drawn them level on points with fellow strugglers Notts County and Leyton Orient.
But they are four points from safety and face promotion-chasing Swindon and Preston in their final two matches.
Scunthorpe boss Mark Robins told BBC Radio Humberside:
"I thought we were an absolute joke. From start to finish the game was nothing, it was a nothing game. We spoke about winning this and putting everything to bed before the game. We coasted through things and I'm sick of us doing things and just doing enough.
"The players have got to accept that they are the ones who go on the pitch and get the results.
"We are mentally weak. We get to a point where we think we are doing well and have done enough and it's got to stop.
"The goals we conceded were as bad as you will ever see, they were horrendous."
- 8GilbeySubstituted forHealeyat 56'minutes
- 25MurphySubstituted forSembie-Ferrisat 76'minutes
- 12BishopSubstituted forEvansat 76'minutes
- 18LundstramSubstituted forAdelakunat 87'minutes
- 24RobinsonSubstituted forWoottonat 76'minutes
- 10van Veen
- Peter Bankes
- Shots on Target
Second Half ends, Colchester United 2, Scunthorpe United 2.
Goal! Colchester United 2, Scunthorpe United 2. Hakeeb Adelakun (Scunthorpe United) right footed shot from the right side of the box to the bottom left corner. Assisted by Marcus Williams.
Substitution, Scunthorpe United. Hakeeb Adelakun replaces John Lundstram.
Foul by Dion Sembie-Ferris (Colchester United).
Marcus Williams (Scunthorpe United) wins a free kick on the right wing.
Goal! Colchester United 2, Scunthorpe United 1. Chris Porter (Colchester United) right footed shot from the centre of the box to the bottom left corner. Assisted by David Fox.
Foul by Matthew Briggs (Colchester United).
John Lundstram (Scunthorpe United) wins a free kick in the attacking half.
Foul by Gavin Massey (Colchester United).
George Evans (Scunthorpe United) wins a free kick in the attacking half.
Goal! Colchester United 1, Scunthorpe United 1. Tom Eastman (Colchester United) left footed shot from the centre of the box to the top right corner.
Corner, Colchester United. Conceded by George Evans.
Attempt blocked. George Moncur (Colchester United) right footed shot from outside the box is blocked.
Substitution, Colchester United. Dion Sembie-Ferris replaces Jacob Murphy.
Substitution, Scunthorpe United. George Evans replaces Neal Bishop.
Substitution, Scunthorpe United. Kyle Wootton replaces Theo Robinson.
Attempt missed. George Moncur (Colchester United) right footed shot from outside the box is just a bit too high.
Corner, Colchester United. Conceded by Luke Daniels.
Gavin Massey (Colchester United) hits the bar with a left footed shot from the right side of the box.