Canada's Foreign Affairs Minister Mélanie Joly says she won't shake the hand of her Russian counterpart Sergey Lavrov at a G20 meeting in Bali, Indonesia, this week.
Yulia Kovaliv told MPs at a House of Commons committee that Russia is using sexual violence as a weapon of war and said rape and sexual assault must be investigated as war crimes.
Western nations expelled dozens more of Moscow's diplomats and weighed further sanctions as they expressed their revulsion at what they say are war crimes.
A delegation of Ukrainian lawmakers visited Washington on Wednesday to push for more U.S. assistance, saying their nation needs more military equipment, more financial help and tougher sanctions against Russia.