Members of the Alberta legislature were up through the night as the NDP staged a filibuster over proposed changes to labour legislation.

Legislation passed by the Alberta NDP mandates up to five days of job-protected unpaid sick leave, three days of bereavement leave for the loss of a family member and up to 16 weeks for long-term illness or injury

Alberta Premier Rachel Notley's government passed new workplace rules and exchanged broadsides with the opposition before the spring sitting of the legislature wrapped up Tuesday.