Ukraine crisis: US sanctions target Putin's inner circle
20 March 2014 Last updated at 23:12 GMT
US President Barack Obama has announced further sanctions against Russia over its annexation of Crimea from Ukraine.
The new measures are being targeted at individuals closely associated with President Vladimir Putin, as well as a bank controlled by his allies.
In return, Russia has announced its own sanctions against several leading US officials.
Bridget Kendall reports.