India, Oct. 27 -- Iran is accelerating reconstruction work at key nuclear and ballistic missile facilities, according to retired US Army General Jack Keane.

Recent satellite imagery from heavily fortified Pickaxe Mountain complex near the Natanz nuclear site has also recorded a surge of activity, according to New York Post.

Keane said the activity shows Tehran has not abandoned its long-term nuclear ambitions despite ongoing diplomatic engagement with the United States.

Speaking to Fox News, Keane said Iran remains committed to rebuilding capabilities damaged during recent military operations. He said, "They certainly haven't given up on it. It defines their regime. We're dealing with a diabolical regime."

He added that Iran had recom...