Guardian reporter Vikram Dodd said the police cordon had been lifted and people were being allowed back into the Old Bailey after an evacuation of the building.
Courts service press office unable to comment on claims suspect package found in court where terrorist pavlo lapshyn due to be sentenced
Alert over. Cordon lifted.
People rushing back into old bailey
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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.