(CNN)Somber mourners paid tribute to the mayor of the Polish city of Gdansk as he was laid to rest on Saturday, less than a week after he was fatally stabbed during an open-air charity event.
Poland lays slain Gdansk Mayor Pawel Adamowicz to rest
Thousands of people watched in shock Sunday as a man rushed on stage and stabbed Pawel Adamowicz, 53, in the heart and stomach. The liberal mayor, a well-known critic of his country's right-wing government, died a day later despite emergency surgery.
Crowds gathered in the street outside St. Mary's Basilica in Gdansk to watch on a big screen as his funeral service was conducted within the centuries-old church.
European Council President Donald Tusk, a Gdansk native and friend of Adamowicz was among those in the pews, as was former President and Nobel Peace Prize winner Lech Walesa.
Polish Prime Minister Mateusz Morawiecki and other politicians also attended, Reuters news agency reported.
"What happened on Sunday evening ... was perceived as a violent constant sound of a alarming bell, call for saving the conscience and changing the way of our living, political style," Gdansk Archbishop Leszek Slawoj Glodz told mourners during the Mass, according to Reuters.
The previous evening, many Poles turned out to remember Adamowicz as his coffin was carried to the church in procession through the chilly streets of the city he had served for more than two decades.
The procession began from the European Solidarity Center, a museum dedicated to Poland's pro-democracy Solidarity movement, co-founded by Walesa. Long lines of mourners earlier waited outside the museum to pass through and pay their last respects before his flower-banked coffin.