Women in the Nurdagi region of Turkey's Gaziantep were seen crying as their family members are still in debris, where the search and rescue operation is being conducted.
The suspects were held in eight different provinces as part of investigations into looting after Monday's 7.8-magnitude earthquake hit the region, news agency Anadolu said.
The confirmed death toll from the deadliest quake in the region in two decades stood at more than 24,000 across southern Turkey and northwest Syria four days after it hit.
The World Bank in a statement said that it has started a rapid damage assessment to estimate the magnitude of the disaster and identify priority areas for recovery and reconstruction support.
The new aid announced by the US is supporting US Agency for International Development (USAID) humanitarian partners to deliver urgently-needed aid to people in Turkey and in Syria.