Away from the Anglesey election, Labour has held on to two council seats in by-elections caused by the deaths of veteran councillors. The Risca East seat on Caerphilly Council was won by Philippa Leonard. In Bridgend, Charles Smith won Llangewydd and Brynhyfryd.
Welsh Labour sources have confirmed that its councillors on Anglesey have reached a deal to form an administration with Independent members. The deal was approved by the party's governing body, the National Executive Committee.