New videotape emerges of the Turkish president apparently watching the brawl from inside his car.
The blast occurred outside the governor's office in Adana.
If the rebels take Jarablus, it would preclude an assault by Kurdish forces who hope to expand their reach.
Nearly 100 were wounded in the attack on a Kurdish wedding party.
Suicide bombings specifically are killing more people and spreading to more countries.
The U.S. embassy has warned Americans that there are 'credible threats' to tourist areas in Turkish squares.
Rosturizm has told tourists to take all necessary safety precautions while visiting Turkey.