United States (US) Ambassador to Malaysia, Joseph Y. Yun (pic) has no knowledge on the alleged presence of two American intelligence agents at the Attorney-General's (AG) Chambers.

"I have not heard of that (any spying activity by the US' Central Intelligence Agency at the AG's Chambers).

"I think there was a clear statement by your government, two days ago, on the matter and I don't want go beyond it," he said.

Yun was speaking at a media conference after attending the American Malaysian Chamber of Commerce's Penang Dialogue 2013 here Wednesday, which was also attended by Penang Chief Minister Lim Guan Eng.

On Monday, Minister in the Prime Minister's Department Nancy Shukri had rubbished an allegation on the presence of two American intelligence agents at the AG's Chambers. She said such claims were unfounded.

Yun said US President Barack Obama had made clear that the US would review its current activities and thereafter, make a decision on balancing the security needs with privacy concerns.

The allegation on the presence of CIA agents in the AG's Chambers was raised by Opposition Leader Datuk Seri Anwar Ibrahim when debating the Supply Bill 2014.

Meanwhile, Yun said the US had yet to issue a travel advisory for its citizens, following the recent murder-cum-abduction incident involving a Taiwanese couple at Pulau Pom Pom.

He said more information was needed before making any assessment.