Many opposition politicians and critical journalists have been jailed in Turkey, meaning politics is far from free.
Erdogan has said he aims to ensure the return of one million refugees within a year to the opposition-held areas.
The discontent in Turkey over the nearly 4 million Syrian refugees has been a source of domestic pressure on Turkish President Recep Tayyip Erdoğan.
Turkey has carried out several cross-border military incursions into northern Syria in recent years and has dozens of bases there.
The Turkish drone strike in Iraq shows the lengths Ankara will go to strike Kurdish anti-ISIS fighters.
In a tweet on Monday, he predicted "stronger seismic activity in the coming days," with a link to a YouTube video.
The number 6,600 likely means that other missing Syrians will also be added to this number, perhaps as many as 10,000 eventually.
The Israeli government needs to plan to strengthen 800,000 buildings and critical infrastructure before it’s too late, experts warn.
Despite the rapid, substantial global humanitarian response from many countries, it just wasn't possible to help everyone, quickly enough.
The mission now is to remove the debris and build new homes for those who need them.