Authorities in Colombia say a rescue operation is underway after a recreational boat with about 150 people on board sank near Medellin. The air force said on Twitter that it was sending a helicopter to the Guatape reservoir while Medellin's mayor said firefighters and scuba divers were heading to the town. Videos circulating on social media show a multi-story ferry sinking as a number of other recreational vehicles rushed to the distressed boat. Authorities did not immediately say how many people had been rescued or were missing.
