Arabian Gulf countries should help neighboring Yemen face increasing militant violence specifically after the countries have recently voiced fear instability in Yemen could go their way, a European official has urged.

The EU Counter-Terrorism Coordinator Gilles De Kerchove said the GCC states can help Yemen through monitoring remittances to militants in their neighbor by Yemeni expatriates in the countries.

On the margins of an international conference on financial crime and terrorism financing, Kerchove talked about a possible work together with the Gulf states to prevent Yemen and Pakistan from becoming failed states and gradually safe havens for Al-Qaeda groups.

Highlighting obstacles facing Yemen including soaring Al-Qaeda attacks, the volatile war in north and the secessionist sentiment in south, he stressed the significance of developing the counterterrorism apparatus in Yemen, saying there is a lot to be done to build up Yemen's weak institutions.

The Gulf states needed to do more to combat money laundering which could benefit Al-Qaeda militants in Yemen, he said.

He said the Kingdom of Saudi Arabia, the world's largest oil exporter, should tighten control along its long and porous border with Yemen.

Earlier this year, Al-Qaeda groups in the kingdom announced a merger with Al-Qaeda wings in Yemen, launching the Arabian Peninsula Al-Qaeda Organization.

The organization then vowed to use Yemen as center to carry out attacks across the region.