India, July 26 -- As the United States' war with Iran enters another lull following nearly two weeks of attacks from both sides that suspended the Islamabad MoU, Tehran remains "more sceptical than optimistic" about the pause.

An Iranian source told news agency Reuters that Tehran will halt its own attacks as long as the United States maintains its pause on strikes.

"Iran's position remains 'attack for attack': if the attacks stop, Iran will also halt its operations. That message has already been conveyed to the United States," the quoted source said.

The Iranian thinking comes to light a day after Washington halted attacks following 13 successive nights of air strikes.

"There is more scepticism than optimism about the halt in attacks...