Turkey issues 113 arrest warrants connected to building constructionTurkish police have already taken at least 12 people into custody, including building contractors.
Meanwhile, unrest in southern Turkey has disrupted rescue efforts in some places.
The number of people confirmed to have died in Turkey and Syria has risen to more than 30,000.
More arrests are expected - but the action will be seen by many as an attempt to divert overall blame for the disaster.
