A 15-year-old has been arrested in connection with a knife attack at the 'Festival of Diversity' in Solingen, Germany, that left three people dead and eight injured, including five seriously. The suspect had been on the run for hours before being detained, and authorities are investigating a possible terrorist motive. Witnesses described the attacker as appearing to be of Arab descent. The attack occurred during the city's 650th anniversary celebration. Germany's Interior Minister Nancy Faeser has called for stricter knife control laws in response to a rise in knife violence. The festival's remaining events were canceled, and police are conducting a thorough investigation while urging the public not to speculate.