COSTELLO: In Turkey, three police officers are dead, and at least 217 people are wounded after an explosion at a police station. It was the second bombing targeting police in Eastern Turkey in the last 24 hours, prompting the nation to raise its level of alarm. Turkey's Prime Minister says Kurdish militants are responsible. Police in Mexico are focusing on four states in their search for the kidnapped son of the notorious drug lord, El Chapo. He was one of six people taken from a restaurant Monday in the resort town of Puerto Vallarta. Officials suspect a rival cartel is responsible for the kidnappings. Three more cases of Zika have been confirmed in Florida bringing the number of non-travel related cases to 33. Two of those cases are outside the area where the bulk of the infections are happening. But health officials say that does not mean there are new areas of transmission. And in Rio tonight, Usain Bolt is poised to make history. The Jamaican sprinter trying to become the first olympian to win three consecutive titles in the 200 meter race. It comes after Bolt ran his fastest time of the year to qualify for that race. And it will also be an historic night for three women on Team USA's track and field team. They will take gold, silver, and bronze in tonight's 100 meter medal ceremony after sweeping the event. It was the first sweep by any country in the race's history. As well as the first sweep ever for U.S. women in olympic track and field. Good for them. Thank you so much for joining me today, I'm Carol Costello. "AT THIS HOUR" with Berman and Bolduan starts now.
Turkish Police Station Bombed; Florida sees Three New Cases of Zika; Usain Bolt, Team USA Set to Break More Records in Rio.