Massive Internet Outage Sweeping Across Pakistan

Many internet users in are facing internet outage across Pakistan. Twitter feed of many Pakistani’s confirmed the news.
In the light of twitter feed:

As a matter of fact, there’s no confirmation from the ISP’s yet. PTCL users and ISP’s which are based on PTCL’s bandwidth faced disruption.

In contrast, other ISPs are facing smaller outage.

According to ProPakistani, PTCL said that it not aware of any outage and their internet is running fine on their end. According to internet users, mainstream service like Facebook, Twitter are running fine however other platforms like slack, Amazon, iShopping and local website such as news are not opening.

Moreover, some tweets even reported that Jazz 3G is not working

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UPDATE: Internet is now working fine. There was a problem with submarine cable.

Is your internet working fine?