Australia will send a further $26.5 million in military aid for Ukraine in the form of anti-armour weapons and ammunition.
Prime Minister Scott Morrison made the announcement on Friday as the first of 20 Bushmaster armoured vehicles, which include two ambulance variants, worth $50 million were loaded into C-17 Globemasters.
Mr Morrison says he couldn't go into further detail about the new package at the behest of Ukrainian officials and Australia's partners, but it included "capabilities that have proven critical on the battlefield so far".