HONG KONG (AP) — Apple said it had removed Meta’s WhatsApp messaging app and its Threads social media app from the App Store in China to comply with orders from Chinese authorities.

The apps were removed from the store on Friday after Chinese officials cited unspecified national security concerns.

Their removal comes amid elevated tensions between the U.S. and China over trade, technology and national security.

The U.S. has threatened to ban TikTok over national security concerns. But while TikTok, owned by Chinese technology firm ByteDance, is used by millions in the U.S., apps like WhatsApp and Threads are not commonly used in China.

Instead, the messaging app WeChat, owned by Chinese company Tencent, reigns supreme.

Other Meta apps, including Facebook, Instagram and Messenger remained available for download, although use of such foreign apps is blocked in China due to its “Great Firewall” network of filters that restrict use of foreign websites such as Google and Facebook.