Mass graves could be introduced if local death services become inundated with bodies during the coronavirus outbreak, experts have warned.Death and bereavement services will "highly likely" be overwhelmed even if just 1% of people who contract Covid-19 die, say academics from the University of Huddersfield.A major increase in mortality rates, coupled with staff absences, would lead to struggles issuing death certificates, a bottleneck in funeral services and overfilled mortuaries, they warn.Limited cemetery space could also be a major problem, with mass graves a possibility.However, the researchers acknowledge this would be "highly controversial and would upset and anger many communities".It comes as work started on a temporary mortuary at