"If you rip our heart out, I swear, we will rip your heart out. If we find such a connection there are already some indications, we will do whatever it takes," Erdogan told in a speech in Aegean coastal town of Marmaris.
The death toll from the fires rose to six on Saturday, as two firefighting personnel died during efforts to control the blaze in Manavgat, broadcaster CNN Turk said. Thousands were evacuated from their homes.
Satellite imagery showed smoke from the fires in Antalya and Mersin was extending to the island of Cyprus, around 150 km (100 miles) away.
Wildfires are common in southern Turkey in the hot summer months but local authorities say the latest fires have covered a much bigger area.