Two stabbed to death in Karachi's separate incidents

Two people, including a woman, were killed in separate knife attacks in Karachi. Police have detained suspects in one case and are searching for a suspect in the other. In the first incident, a man named Nasir was fatally stabbed during a dispute over water supply in Lyari. Three brothers are in custody as investigations continue. In the second incident, a woman was found dead in a hotel room, allegedly killed by her ex-husband. The suspect fled after the attack, and police are pursuing him and his associates.