BANGKOK, Sept. 13 (Xinhua) -- Thailand's anti-graft agency said on Wednesday that there was insufficient evidence to prove that ex-prime minister Yingluck Shinawatra was negligent in failing to prevent great damage caused by the 2011 flooding.
Watcharapol Prasarnrajkit, chairman of the National Anti-Corruption Commission (NACC), told media that natural disasters are not predictable, while there was no evidence of Yingluck's malfeasance in handling the massive flooding.
"Yingluck has properly followed administrative steps in handling the floods, thus the NACC has passed a resolution to clear her allegation," Watcharapol was quoted as saying by the local media.
Since 2016, the NACC has been investigating two former prime ministers - Yingluck and Ahbisit Vejjajiva - to determine whether their governments were responsible for the flooding disaster in 2011.
The disastrous flooding in 2011 was blamed on alleged mismanagement of the country's water supplies at different dams.
Critics said the dams were holding too much water at a time when the country was hit by a series of rainstorms.
The disasters caused damage of more than 350 billion baht (about 10 billion U.S. dollars), according to the local media.