This is the moment researchers freed a manta ray which was trapped in a net in Mozambique. <br /><br />Nakia Cullain and Corey Nevels from Marine Action Research were on their way back from a dive near the beach of Zavora last June when they noticed a buoy moving in an unusual way. <br /><br />"We grabbed the buoy and starting pulling the net into the boat when we noticed a large manta ray entangled in it," Cullain said. <br /><br />"Immediately the two main researchers grabbed their scuba gear, jumped in and started cutting the net to set her free," Cullain added.<br /><br />"At the end of the video, once the manta is released, you can see her swim back towards the camera. She did a circle around us to say thank you," Cullain said. <br /><br />According to Cullain, fishermen in Mozambique often use gillnets in which rays, dolphins and turtles frequently get caught up. <br /><br />"We were lucky to be in the right place at the right time to save this magnificent animal," Cullain concluded.