Pudong and Hongqiao airports are setting up extra security checks at the terminals’ entrances and exits beginning August 15 (Monday) in a move widely seen as an effort to beef up security ahead of the G20 meeting in Hangzhou.

The additional checks are being launched in accordance with the nation’s anti-terrorism law, the Shanghai Airport Authority said in a statement. As reported by the Shanghai Daily, airport authorities gave no official reason for the change.

Last month, an additional security check was implemented for all passengers traveling to Hangzhou from Shanghai South Railway station until September 5. The extra measures will also be extended to Shanghai’s other train stations.