The government revealed that artillery pieces, along with associated gear and spare parts, were shipped from Norway. It did not disclose other specifications such as future donations, citing security reasons.
Norway has completed providing training to Ukrainian soldiers in Germany on how to operate the weapon system.
Norwegian Defence Minister Bjørn Arild Gram said: “This is a substantial contribution and one that is very much in demand by Ukraine. Ukraine has specifically requested this type of weapon.
“The development in the war in Ukraine now suggests that it is necessary to also donate heavier artillery and weapons systems.”
The Norwegian Army recently procured new artillery from South Korea to replace the M109 artillery guns.
The self-propelled howitzers and spare parts donated to Ukraine were supplied from the artillery stored by the Army.
The M109 is a US-made, 155mm, self-propelled howitzer based on a tracked armoured chassis. The M109A3GN is the Norwegian variant of the German M109A3G 155mm tracked self-propelled howitzer, acquired by Norway between 1969 and 1971.
It is equipped with a 39-calibre barrel and has a firing range of 24,700m.
As part of its efforts to strengthen the Ukrainian armed forces to counter Russia, Norway has made significant contributions to the war-torn nation.
Its military assistance to Ukraine includes 4,000 M72 anti-tank weapons, 1,500 bulletproof vests, helmets, protective masks, and sleeping bags.
In April this year, Norway shipped the Mistral air defence system to the Ukrainian forces.
The package included approximately 100 Mistral air defence missiles and multiple launchers.
In addition, Norway is planning to contribute Nkr400m ($42.22m) to a UK-led fund to handle the acquisition of equipment for Ukraine.