A respectful vigil was held outside the Town Hall in Bridge Street in memory of the Labour MP Jo Cox.
Politicians and members of the public gathered at 4.30pm this afternoon (Friday, June 17) for the service.
Speeches were read out and a book of condolence was opened, while the flag on the Town Hall is flying at half mast today.
Mrs Cox was shot and stabbed in Birstall, West Yorkshire yesterday (Thursday, June 16).
A man has since been arrested by police.
The vigil is the second to take place in Peterborough this week.
On Tuesday evening, a vigil was held at the Holocaust Memorial, St John the Baptist church, Cathedral Square, in solidarity with the people who lost their lives in the recent Orlando shootings.
The vigil was hosted by the Peterborough LGBT Equality Council.