Twenty-four hours of terror as cartel violence engulfs Mexican city

At least 29 people killed in Culiacan as drug cartel gunmen fight bloody battle to stop transport of El Chapo's son after arrest

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Alvaro Arandas was approaching the check-in counter at Culiacan international airport when the pandemonium began.

You could hear the shooting - huge blasts, so much noise," said the Mexican businessman, who had planned to board a flight to the eastern city of San Luis Potosi.