UNISON members threw their weight behind the mass co-ordinated strike on July 10 yesterday.

The 600,000 local government workers will walk out alongside members of teachers’ union NUT and may also be joined by members of GMB, Unite and PCS.

Unison general secretary Dave Prentis said the July 10 action could be “bigger than the general strike” after 58 per cent backed a strike in protest at the 1 per cent pay rise offered by employers.