Apple agrees to accept China's internet security clearance

China's top internet security watchdog says Apple has agreed to allow security checks by the Cyberspace Administration of China, becoming the first foreign firm to agree to the watchdog's rules.

China has overtaken the US as the largest market for iPhones.

Several US tech giants, including Google and Facebook, have been approached by the watchdog to comply with China's cyberspace checks.

These firms have had to leave the Chinese market because of their refusals to comply.