Thai authorities are installing a huge safety net at one of the nation's many beaches after a tourist was badly injured by a shark bite. Tourism is a main driver of the Thai economy. The country attracts more than 30 million visitors every year, and officials want to keep holidaymakers safe. CGTN's Martin Lowe brings us this report from the beach where the shark attack took place.

A badly-hurt swimmer is carried from the sea at the tourist resort of Hua Hin, a coastal town on the Gulf of Thailand. Blood can be seen pouring from his leg, in this mobile phone footage. At first, there was confusion over the cause. Doctors who treated the injuries said the wounds came from sharp rocks. But then this. Video of sharks in the same area, posted online by the abbot of a local Buddhist temple. He said people should be warned because lives were at risk. Officials then confirmed it had been a shark.

BANNARAK SOEMTHONG DEPARTMENT OF MARINE & COASTAL RESOURCES "The doctor had no experience with sharks and said he thought the injury was caused by rocks, but when we spoke to experts they said it was a shark bite."

Now picturesque Sai Noi beach has been partially closed and is deserted. Signs warn people not to swim. A shark net, 300 meters long, is to be installed to try to prevent further attacks.

MARTIN LOWE HUA HIN, THAILAND "Shark attacks are rare in Thailand but they do happen. Tropical seas can always carry dangers. It's a reminder to tourists that when swimming in unfamiliar areas they should always be aware – and alert!"

The injured man, who's Norwegian, received 19 stitches in hospital. There are other perils in Thai waters. In recent years three tourists have died from Box Jellyfish stings. The organization, Shark Attack Data, says two people have been killed by sharks in Thailand - in 2000 and in 1979 - with three previous attacks causing injury, the most recent at Phuket in 2015. These have been identified as bull sharks between one and two meters in length. Normally not aggressive, but, like all wild animals, unpredictable. Martin Lowe CGTN Hua Hin, Thailand.