Ukraine updates: US backs tribunal on Russia’s ‘aggression’

The live blog is now closed, thank you for joining us. Here are the updates for Tuesday, March 28:

The live blog is now closed, thank you for joining us. Here are the updates for Tuesday, March 28:

• The United States supports the establishment of a special tribunal on Russia’s crime of “aggression” against Ukraine, a top envoy at the Department of State has said.
• The US and Russia have stopped sharing biannual nuclear weapons data under the faltering New START arms control treaty.
• The International Olympic Committee has issued recommendations for the gradual return to international competitions for Russian and Belarusian athletes.
• Russia-backed separatist leader Denis Pushilin says Moscow’s troops are advancing in the eastern Ukrainian city of Bakhmut and have almost taken full control of a metals plant there, as Kyiv aimed to wear down what it called “overwhelming” enemy forces.
• Belarus says it was forced to house Russian nuclear weapons because NATO aggression threatens national security, Russia’s TASS news agency reported.