"LRU from France have arrived in Ukraine! The Ukrainian army is now even more powerful," Defence Minister Oleksiy Reznikov tweeted.

The French-provided LRU is the fourth variety of sophisticated rocket-launcher system (MLRS) -- after HIMARS, M270 and MARS II -- to be supplied to Ukraine to help Kyiv battle Russia's invasion.

It has a range of around 70 kilometres (43 miles).

Ukraine in recent months has been using the Western-supplied systems to hit command stations and ammunition depots deeper into Russian-controlled territory than its own arsenal would allow.

Kyiv is asking for more long-range weapons to sustain steady progress on the battlefield and air defence systems to avert waves of Russian strikes.

Two weeks ago, French Army Minister Sebastien Lecornu announced the delivery of two French LRU to Ukraine in an interview with Le Journal du Dimanche.

Lecornu said France would also send two batteries of Crotale air defence systems and was "looking into a request from Ukraine for radars that are crucial to detect strikes upstream."

France is also planning to take 2,000 out of the 15,000 soldiers the EU promised to train.