In pictures: Party leaders cast their votes in Holyrood election

© Jane Barlow/PA WireScottish Labour party leader Anas Sarwar, with wife Furheen and son Ailyan, arrives to deliver his postal vote at Pollokshields Burgh Hall in Glasgow
Scottish Labour party leader Anas Sarwar, with wife Furheen and son Ailyan, arrives to deliver his postal vote at Pollokshields Burgh Hall in Glasgow