The Swiss government said on Wednesday that it would act as a go-between for Saudi Arabia and Iran, indirectly re-opening diplomatic relations between the rival Middle Eastern countries.

The Swiss executive assembly, the Federal Council, approved a "protecting power mandate" between Riyadh and Tehran that both governments later agreed to.

Under the mandate, the Swiss embassy in Riyadh is to offer consular services such as travel advice and aid to Iranians in Saudi Arabia. The Swiss embassy in Tehran would reciprocate in the arrangement.

The Swiss Foreign Affairs Department said it would also conduct other diplomatic actions on behalf of either state "if requested by the states in question."

Read more: Steinmeier's Iran-Saudi double-header, a difficult diplomatic drive

Healing severed ties?

The traditionally neutral Alpine country had offered the arrangement to Saudi Arabia and Iran after both countries severed diplomatic relations in January 2016.

The rupture occurred after protestors, angered by Riyadh's decision to execute a Shiite cleric on terrorism charges, attacked the Saudi embassy in Tehran.

Most Iranians are Shia, a minority confession within Islam, whereas most Saudis are Sunni, the confession of most Muslims worldwide.

Read more: Saudi's cut of diplomatic ties 'a big mistake' says Iran

Since the breakdown in relations, the two oil-rich countries have been vying for regional dominance by supporting opposing sides in local conflicts. Iran has sustained Yemeni rebels against a Saudi-led intervention in the country and supported Shiite militias in Syria against forces backed by Riyadh.

The new mandate is not the first Switzerland has agreed to. The country has also acted as a go-between for the US and Cuba and the US and Iran.

amp/rc (dpa, AP)