Newcastle boss Eddie Howe, speaking to BBC Match of the Day: "Another game we should have won - we played pretty well. First half was a none event, neither team grabbed the game like they could have done.
"Second half we did do that, scored a great goal from our perspective and then was in the position to win the game. It's happened too many times this season where we haven't followed through and defended well enough."
On poor defending: "It contributes to a lot - the feeling when you are able to defend well and consistently keep clean sheets it stabilises you as a team and you feel you can see out a game. For whatever reason, a combination of factors in my opinion, we haven't delivered that and our confidence has been hit.
"I don't think there was any sign of that [Forest] goal coming, we defended pretty well overall but in a moment we've conceded.
"We did have a number of chances. That's the other way to defend - to score a second and third goal and that's something we've been good at over the years.
"We had some big moments before and after we scored. Their goalkeeper made some good saves, but we'll probably look at that with a different eye when we review it and see we could've been more clinical. I thought we were good between both boxes and a lot of positives, but ultimately we're disappointed to draw.
"The last three games have been a lot better. Better energy, focus and the players have been committed. We've had mixed results in those games but performances have been good."
Magpies goalscorer Harvey Barnes, speaking to BBC Radio 5 Live: "A little bit disappointing. It was a little bit of a back and forth game and then we got the goal to go ahead. We looked comfortable for a bit and looked like we might get another one, and created a few chances.
"It has been the story of the season, late in games sinking in, conceding pressure and ultimately conceding goals, and that has cost us today.
"When we go ahead in games it's something that we've not dealt with well enough. We start to look nervy and lose the confidence to go and get another goal and ultimately just try to defend the lead which we haven't done well enough.
"It's hard to put your finger on exactly why, maybe a bit of fatigue towards the end of games, and then when it happens once or twice then the confidence drops.
"Dropping back is not an instruction, it is just something that seems to creep into our game and it is something we've got to stop doing."
On former teammate Elliot Anderson's late goal: "We had a few good years with him here and he played well today and ultimately scored the goal that leveled the game. Nice to see him doing well but not when we're playing against him."
Did you know?
Newcastle have dropped more points from winning positions than any other side in the Premier League this season (27).
Harvey Barnes has scored in back-to-back Premier League games for the first time since last November, while his 21 goal involvements in all competitions this season are as many as in his previous two campaigns with Newcastle combined (13 in 2024-25, eight in 2023-24).
Listen to Howe and Barnes on BBC Sounds.