The block on Twitter by Turkey’s government which caused an international uproar has been ruled a violation of freedom of expression by the country’s constitutional court.
The decision is the most significant legal challenge to the ban since a local court ordered it to be lifted last week.
Both the main opposition party and prominent legal academic Kerem Altiparm applied for the court ruling.
“Our hope is that the rule of law will prevail and they will implement the judgement. If not we will think about going to the criminal court or we can repeat our application to the constitutional court or other option might be considered,” said Altiparm.
Prime Minister Recep Tayyip Erdogan blocked the microblogging platform and YouTube ahead of local elections which his AKP decisively won on Sunday
Despite the local court’s ruling the ban has remained in place.
Erdogan’s actions followed a stream of anonymously posted audio tape purporting to expose corruption in his inner circle days ahead of the ballot.