The United States is on the brink of ushering in a fourth round of punitive United Nations sanctions against Iran.

The Iranian Red Crescent is planning to send humanitarian aid by sea to Gaza in a brazen challenge to Israel's sea blockade.

Hillary Clinton told Saudi college students that if Iran gets a nuclear weapon it could trigger a nuclear arms race in the Middle East.

Tonight, Iran begins marking 31 years since the country's Islamic revolution.

US senators are urging US Secretary of State Hillary Clinton to take more proactive steps in supporting organisations that promote 'Internet freedom' in countries such as Iran and China, where severe Internet restrictions are enforced.

The funeral of Grand Ayatollah Hossein Ali Montazeri, the eminent cleric and champion of reform, turned into a mass protest in Iran yesterday as the vast crowd chanted slogans against the government and clashed on the streets with security.

A New Zealander was preparing to skipper a yacht in an international race when the boat was seized by Iranian authorities in territorial waters.

Jill Worrall finds a peaceful haven in Iran's Alborz Mountains.

Jill Worrall finds stark contrasts in central Iran's mountain region.

Jill Worrall laments the closure of a popular teahouse where visitors once recited the words of mystical poet Hafez.

Jill Worrall visits the roadside inns which once housed camel caravans travelling the silk road.