WeChat users in Mainland China found the service was’t accessible around 7.30 am this morning.

Its official Weibo acknowledged it saying that began at 8 am Beijing time. Not only does it affected WeChat but also some other Tencent’s services.

Many users found the service was back around 11 am. WeChat stated later that not all the WeChat users were affected, but still a number of users couldn’t use it as of 11 am. The direct cause is two optical fiber cables in a server room went wrong, according to WeChat statement.

Update: The statement posted in the afternoon reads that the fiber cables were damaged because of municipal construction.