Four men are in custody and we are interrogating them because they are suspected of helping instigate the events at the US consulate,” Wanis Sharif Deputy Interior Minister told the Reuters news agency on Thursday.

Meanwhile, demonstrations against an anti-Islam film made in the US have spread to several countries across the Middle East.

Hundreds of protesters stormed the U.S. Embassy compound in the capital Sanaa, chanting “death to America”  removing the embassy’s sign on the outer wall. Clashes between police and demonstrators near the US embassy in Sanaa on Thursday killed 4 people and wounded another 34, a security official said, according to Al Jazeera.

At the same time, protesters clashed with police near the U.S. Embassy in Cairo for the third day in a row. Police used tear gas to disperse the demonstrators. Sixteen protesters and 13 policemen were wounded in the clashes, which broke out overnight. Twelve protesters have been arrested, the Interior Ministry said. American flags were also burned in Tunisia, outside the US embassy in the capital of Tunisia.

US President Barack Obama has called the leaders of Egypt and Libya to discuss security co-operation following the violence in Cairo and Benghazi, the White House has said. Barack Obama, the US president, has vowed to bring to justice those responsible for the Benghazi attack. Secretary of State Hillary Clinton said Washington had nothing to do with the video.

Innocence of Muslims, the film that mocked Prophet Mohammad, was produced in the US by a filmmaker with ties to Coptic Christian groups, and excerpted on YouTube with dubbing in Arabic.

Three months after the Yemeni people elected President Hadi, the EU will, along with the international community, the Council express its support to the process of comprehensive reform and renewal on which the Yemeni government and Yemen’s transitional institutions have now embarked.

The EU welcomed the efforts of President Hadi to implement the provisions of the Gulf Cooperation Council initiative and implementation mechanism. The EU encourages the President to rapidly take forward the national dialogue. It welcomes the appointment of a Liaison Committee and urges him to establish a fully inclusive Preparatory Committee without delay, bringing in representatives from all strands of Yemeni society. The EU calls upon all relevant Yemeni stakeholders to contribute actively to this process. The EU, alongside other international partners, will continue to support the government in this crucial endeavour, as the basis for constitutional reforms and lasting reconciliation.

As stressed in an announcement, the Council is deeply concerned by all attempts to derail Yemen’s transition. It calls on all parties to abide by the undertakings set out in the Gulf Cooperation Council initiative and implementation mechanism, in good faith. President Hadi has demonstrated his determination to implement the initiative. The EU is therefore committed to assist him, exploring all available options to ensure compliance from any individuals who persist in undermining or opposing the political transition in Yemen. In this connection, the EU recalls United Nations Security Council Resolution 2014, which calls on all parties to commit to a political settlement based on the Gulf Cooperation Council initiative and implementation mechanism.

The EU is alarmed by the serious deterioration of the humanitarian situation. In particular food insecurity, notably for women and children, is of major concern. Moreover, the continuing insecurity in all areas of the country has compounded the humanitarian situation and led to a further increase of internally displaced persons. A strong and coordinated humanitarian mobilisation is therefore necessary. The EU is committed to strengthening its humanitarian engagement in Yemen.

The Union condemns the attack in Sana’a on 12 May that injured the Bulgarian Ambassador to Yemen, which represents evidence of the fragile security situation in the country. The EU calls on the Yemeni authorities to do their utmost to investigate the incident.