Louisville Mayor Greg Fisher (D) had just hugged someone Saturday night when a man climbed up and punched him, causing the mayor to fall back to the ground in downtown Louisville, according to video of the incident. Footage from the attack published by the WDRB shows a man walking indifferently towards Fischer and then suddenly hitting the mayor with his right fist. As the mayor fell down, the perpetrator walked away as another person tried to confront him. Fisher was not seriously injured, according to Louisville police, who are now searching for the perpetrator. The incident took place at the Fourth Street Live retail complex. By Sunday, the mayor appeared relatively steadfast. “You know, occasionally in life things happen,” Fisher told WLKY. “You know, they’re tearing you down. You have to get up again and move on. “ Fisher’s attack came about four months after a gunman opened fire on the campaign office of Craig Greenberg, a Democratic candidate running for Fisher’s third and final term as mayor. Officials used tables to block the office, and Greenberg said after the February incident that a bullet fell into his sweater. A local activist, Queens Brown, is facing state and federal charges in connection with the incident. He pleaded not guilty, according to the Louisville Courier-Journal. A mayoral candidate was shot in his office. Police have charged an activist with attempted murder. On Saturday night, Greenberg wrote on Twitter that Fisher and his family were thinking. “Whoever is responsible for this attack must be handed over,” Greenberg wrote. “We can not resolve our differences by force.” Police have not made public the possible motives of the perpetrator and it is not clear what Fisher did to the band in downtown Louisville when he was punched. Earlier Saturday, Fischer attended the city’s Pride Parade, according to his Twitter account. The incident raised questions about how the perpetrator passed through the mayor’s security and how he managed to escape. Jessica Wethington, the mayor’s spokeswoman, told the Courier-Journal that the mayor’s security was present during the attack. He said the mayor was “well” immediately after the attack and did not need serious medical treatment, adding: “The mayor says he is happy he can still receive a punch.”