The access to Twitter is restricted in Turkey, according to reports from an Internet monitoring company and journalists and academics tracking the country's response to this week's devastating earthquake.
On Wednesday, NetBlocks said traffic filtering was implemented at the internet service provider level, preventing Twitter users from reaching the social media site.
The report was a result of users saying that Twitter was unavailable in the country and President Recep Tayyip Erdogan began a tour of the affected region.
Zeynep Tufekci, an Istanbul-born Columbia University professor and longtime scholar of large-scale social media use, was quoted by widespread reports of a Twitter crackdown in Turkey.
Tufekci said that some Twitter users expressed discontent with Turkey's efforts to respond.
Some Twitter users called on Twitter CEO Elon Musk for help, tagging his Twitter handle in an attempt to draw attention to the problem.
One of the Twitter users, Leven Piskin, stated that Turkey has blocked the use of Twitter in Turkey and asked for access to the service free of charge by Proton VPN.