LONDON (Reuters) - The outgoing head of NATO Jens Stoltenberg said on Monday he welcomed talks on Ukraine's use of long-range missiles to strike inside Russian territory, but any decision on the issue would have to be made by individual allies.

NATO could have done more to arm Ukraine to try to prevent Russia's invasion in 2022, the outgoing head of the Western military alliance said in an interview released on Saturday. "Now we provide military stuff to a war - then we could have provided military stuff to prevent the war,

Stoltenberg said the day the war was launched was the worst in his 10-year stint in the role, from which he is stepping down next month.

A source in the Security Service of Ukraine said drones attacked a large weapons warehouse in Russia overnight.

Ukraine said it destroyed a large weapons stockpile in Russia overnight using long-range drones to stage the attack as Kyiv awaits US permission to use western-made missiles in such operations.

A senior Russian official visited Iran on Tuesday, likely to bolster missile supplies, experts said. His visit came days after a trip to North Korea.

The Kremlin on Wednesday described as "dangerous" comments by Jens Stoltenberg, the outgoing head of NATO, that a decision by the West to allow Ukraine to use Western long-range weapons to strike Russia would not be a red line that would prompt an escalation by Moscow.

NATO Secretary General Jens Stoltenberg is sceptical of Russian leader Vladimir Putin's threats, which come amid discussions about allowing Ukraine to launch long-range missiles deep into Russia. Source: Stoltenberg in an interview with The Times,

As the war in Ukraine extends over its northern border with Russia, Kyiv is urging the United Kingdom and United States to authorise the use Western long-range missiles to strike deep into Russian territory.