The US is planning even more sanctions on Iran after the new year.

"Iran’s economic problems and challenges are going to compound in 2020," a senior State Department official reportedly said during a call with reporters this week.

"They are already deep into a recession, and we are also seeing Iran come under greater diplomatic isolation."

The US has been applying a strategy of "maximum pressure" on the Islamic republic since President Donald Trump scuttled the 2015 deal that saw sanctions lifted in exchange for Iran scaling back its nuclear...