Transparency International says its branch in Pakistan has received death threats from government officials, in connection with the anti-corruption organization's agreement with the U.S. to monitor aid flows to the country.

Syed Adil Gilani, chairman of Transparency International Pakistan, toldThe Wall Street Journal the threats came from "high-level" Pakistani officials, telling him to halt his organization's anti-graft investigations.

He did not name the officials.

In September, the U.S. signed an agreement with TI Pakistan to watch over a large chunk of $7.5 billion in U.S. aid to the country. As part of the agreement, the anti-corruption group will set up a hotline for people to report misuse of the funds.

Pakistani news reports over the weekend cited the country's interior minister, Rehman Malik, as saying that the government planned to mount legal action against the group for paying bribes to officials in return for information, the Journal reported.