ISLAMABAD (Web Desk) - All preparations have been made for safe return of Pakistanis stranded in Yemen, the Foreign Office said Saturday evening.

"We are in constant contact with the Saudi authorities for safe return of our citizens," Foregin Secretary Aizaz Ahmad Chaudhry told a news conference here.

According to him, a PIA plane was ready to take off for Pakistan on a go-ahead from the Yemeni authorities. A Navy ship will be leaving for Yemen on Sunday (today) as well.

Of around 3,000 Pakistanis residing in Yemen, around 1,000 have been trying to come back to Pakistan, the foreign secretary told reporters, adding "safe evauation of our people is our priority".

Aizaz Chaudhry informed that the convoy of stranded Pakistani was allowed to leave the Yemeni capital Sanaa checkpost and it will reach Al-Hadid in a few hours. " They will be shifted to safer cities from where special PIA flights will be arranged to bring them home. Or they might be shifted to Oman if need arises."

The Pakistani embassy had already issued travel advisory.

In a tweet, the Foreign Office said, "We are also in contact with all neighbouring countries of Yemen for evacuation of Pakistanis there without visa by any safe means." .

Saudi Arabia has, according to diplomatic sources, assured Pakistan government of safe evacuation of the stranded Pakistanis.

"Pursuant to the directive of Prime Minister (Sharif), the government of Pakistan is making all necessary arrangements for immediate evacuation of Pakistani community members and embassy personnel from Yemen," said a statement released by the FO.

In an earlier tweet it said it was facing problems evacuating stranded citizens, with the main airports dysfunctional while routes to operating airports and the sea were unsafe.

A Crisis Management Cell (CMC) has been established in the Ministry of Foreign Affairs to coordinate arrangements for evacuation.

Earlier on Friday, Prime Minister Nawaz Sharif observed people living in Yemen are vulnerable to war crimes as the state system there has collapsed.

Saudi Arabia and its Gulf allies launched military operations including air strikes in Yemen to counter Iran-backed forces besieging the southern city of Aden, where the US-supported Yemeni president had taken refuge.

Gulf broadcaster al-Arabiya TV reported the Kingdom was contributing as many as 150,000 troops and 100 warplanes to the operations and that allies Egypt, Jordan, Sudan and Pakistan were ready to take part in a ground offensive in Yemen.