Smooth newt?

Smooth newt?

Observation - Smooth newt?. Description: This old litter tray in my garden has filled with rainwater and two newts have appeared in it. I think they are smooth newts? One is smaller than the other I put in a rock for them but I am looking into putting them elsewhere as this is clearly no good!

This old litter tray in my garden has filled with rainwater and two newts have appeared in it. I think they are smooth newts? One is smaller than the other I put in a rock for them but I am looking into putting them elsewhere as this is clearly no good! Pond or river?
Sorry the pic isn't good, they are wriggley!