Florida, Dec. 30 -- US President Donald Trump on Monday warned Iran of "very powerful" consequences, saying there are indications that Tehran may be trying to rebuild its ballistic missile programme at sites different from those targeted by US strikes earlier this year, even as he said the information is yet to be confirmed.

While he said he does not believe Iran has expanded its nuclear capabilities, he repeated that the country "may be behaving badly," without giving specific details.

Speaking to reporters at his Mar-a-Lago club while standing alongside Israeli Prime Minister Benjamin Netanyahu, Trump said, "I don't want to say it, but Iran may have been behaving badly. It hasn't been confirmed yet, but if it is, they know the consequ...