Iran-backed terrorist militias in Syria are hiding among civilians to avoid possible U.S. airstrikes, amid rising tensions between Tehran and Washington following the killing of Iranian general Qasem Soleimani, local sources said on Monday.

Soleimani, the head of Iran’s Revolutionary Guards’ elite Quds force, was killed in a U.S. drone airstrike outside Baghdad airport on Friday.

Sources told Anadolu Agency that Iran-backed militias in Syria have made major movements following Soleimani’s killing.

Read more: Iranian militias hide among civilians in Syria