The Royal College of Nursing's Janet Youd, a nurse consultant in emergency care, told ITV News, "My nurses are going home from the end of a shift in tears because we can't give the care that we want to give":
More top news
Witnesses reported hearing a "huge bang" at the venue during the concert on Monday evening.
ITV News travels to Britain's eastern-most city to gauge how the electorate will be casting its votes.
Carefully choreographed campaigns can become unstuck because voters have the power to peel back a politician's veneer.