The latest updates on local electoral information are as follows.
Enfield: The byelection in Enfield Lock ward on 18 May was won by Elif Erbil. Labour hold.
Stockton-on-Tees: There was a byelection in Newtown ward on 18 May, after the resignation of Labour councillor Rachael Proud; it was won by Marilyn Surtees. Labour hold.
Changes of allegiance
Aberdeen: All nine councillors elected for Labour on the city council have been suspended from the party after they formed a coalition administration together with the Conservative group. The Scottish Labour leadership had declared it would not accept any coalitions with the Conservatives.
South Lanarkshire: Three councillors elected for the Labour Party, and two elected for the Scottish National Party, have left their groups to sit as Independent councillors. The Labour defectors are Jackie Burns (Larkhall ward), Margaret Cooper (Avondale and Stonehouse ward) and Joe Lowe (Hamilton South ward). The SNP defectors are husband and wife Jim Wardhaugh (East Kilbride East ward) and Sheena Wardhaugh (East Kilbride Central North ward).
Durham: Dawdon division, after the resignation of Labour councillor Leanne Kennedy, who was ineligible for election as an employee of the council. Term ends 2021.
Eden: Alston Moor ward, after the resignation of Liberal Democrat councillor Thomas Sheriff. Term ends 2019.
Sheffield: Nether Edge and Sharrow ward, after the impending resignation of Labour councillor Nasima Akther for ‘health and personal reasons’. Term ends 2020.
South Oxfordshire: Didcot South ward, after the resignation of Labour councillor Margaret Davies, who was the only Labour member of the council. Term ends 2019.
Stockton-on-Tees: Yarm ward, after the resignation of Conservative councillor Ben Houchen, now Mayor of Tees Valley. Term ends 2019.
Three Rivers: Chorleywood South and Maple Cross ward, after the death of Liberal Democrat councillor Ann Shaw who was the council leader for thirty years (1986-2016). Term ends 2020. Her loss means the Liberal Democrats have lost their overall majority on the council.
Waltham Forest: William Morris ward, after the death of Labour councillor and former Mayor Nadeem Ali, aged 34. Term ends May next year.
Warwick: Stoneleigh and Cubbington ward, after the resignation of Conservative councillor Nick Harrington who had been under criticism and police investigation over comments on Twitter (and was suspended from the Conservative group). Term ends 2019.
Waveney: Oulton Broad ward, after the death of Conservative councillor and council leader Colin Law. Term ends 2019.
West Lancashire: Derby ward, after the resignation of Conservative councillor Paul Greenall. Term ends May next year.
Worthing: Marine ward, after the resignation of Conservative councillor Joan Bradley. Term ends 2020.