Pyongyang, June 23: People in North Korea has been denied access to photo sharing social network website Instagram, media reported.
Users started getting message in English "Warning! You can't connect to this website because it's in blacklist site" when the open the app using the North Korean carrier Koryolink, The Guardian reported.
A similar notice in Korean says the site contains "harmful content", not mentioned in the English version.
Access to social media remains off-limits to virtually all North Koreans, but since the country started to allow foreign visitors access to 3G on their mobile phones in 2013 sites such as Facebook, Twitter and Instagram - and more recently, the live-streaming video app Periscope - have come within the reach greater number of people within North Korea, unusual for a country that has some of the strictest censorship on the planet.
Other social media sites such as Facebook and Twitter are still working fine.