Staff at Sheffield Hallam University have walked out on strike as part of industrial action at both the city's universities in a dispute over job losses, workload and welfare.
It is the second time this year members of the University and College Union (UCU) at Sheffield Hallam have taken action, with members at the University of Sheffield also due to strike in coming weeks.
Bob Jeffery, from the UCU at Sheffield Hallam, said: "Massive cuts have been pushed through, so we've lost about 1,000 staff in the last two years."
A Sheffield Hallam University spokesperson said "tough decisions" had to be made due to "financial challenges", but the university had managed to avoid compulsory redundancies.