DUBAI (Reuters) - Azerbaijan will not allow other countries to use its territory to launch an attack on neighbouring Iran, Iranian media reported Azerbaijan's Defence Minister Safar Abiyev as saying on Monday.

Tens of thousands of people marched through Azerbaijan's capital on Sunday to commemorate the killing 20 years ago of hundreds of people during a war with Armenia over disputed territory.

TEHRAN, Iran (AP) — Iran's state TV is reporting Azerbaijan's defense minister pledges not to allow anyone to attack Iran through his country. The report says the visiting minister, Gen. Safar Abiyev, told reporters Azerbaijan will not act against "great Iran" or allow such an attack.

Anti-government protests planned to coincide with Eurovision Song Contest.

BP Plc has boosted its capital spending by 23% to $3.2 billion from the 2011 level of $2.6 billion on its oil and gas projects in Azerbaijan.

Iran challenged Azerbaijan on Tuesday over $1.5 billion in arms it said were purchased from arch-foe Israel, state media reported, in a sign of further strains between the neighbouring countries.

Iran is confident that neighboring Azerbaijan would not allow attacking forces to pass through its territory, Iran's President Mahmoud Ahmadinejad said Monday, according to the official IRNA news agency.

Azerbaijan vs. Armenia: A Eurovision War of Song

Iran is confident that neighboring Azerbaijan would not allow attacking forces to pass through its territory, Iran's President Mahmoud Ahmadinejad said Monday, according to the official IRNA news agency.

Report: Azerbaijani defense minister pledges no one will attack Iran through his country