Is this a mouse or a young rat?

Hi.

So, the short story is. I've been hearing loud scratching and gnawing in the loft on and off (I've probably been asleep most of the time) for around 3 weeks - only really noticed upon waking between 2-4am.

Finally managed to get a rat/mouse trap through the post. I set it last night with a bit of peanut butter as bait.

Lo and behold, this morning when I woke up and went to check the trap, there's was a little rodent inside.

I still can't work out if it's a mouse or a young rat. It looks like a mouse in some photos and then from side on when it walks it looks more like a young rat.

I took a few photos of it before letting it go (though not far enough from my house due to current non essential driving restrictions).

So what is it? Mouse? Small rat?