In Rivers State, the Nigeria Labour Congress (NLC) will observe May Day with a rally demanding the return of democratic governance.
The protest comes amid concerns over the ongoing state of emergency in the oil-rich region, which many view as a threat to civil liberties.
Meanwhile, in Edo State, labour leaders have accused the government of meddling in union affairs.
The NLC says this year’s Workers’ Day will highlight both national and regional challenges facing organized labour.