9 Attackers Dead: Somalia President Palace Attack(WarningGraphics Images)

Nine al-Shabab militants wearing military fatigues and carrying guns and grenades died after attacking the presidential palace with two car bombs on Friday, in an assault the president called a "media spectacular" by a "dying animal."

President Hassan Sheikh Mohamud was unharmed, but two government officials were killed, the interior ministry said.

The attack underscores a worrying new trend in Mogadishu: That despite a period of relative calm following al-Shabab's ouster from Mogadishu in August 2011, militants have carried out a series of deadly assaults in recent weeks that have seen the city hit with mortar fire and pitched battles.

Weapons meant for the Somali army could have been used by the militants in Friday's attack. A confidential U.N. Monitoring Group on Somalia and Eritrea reported this month that the country's military is selling weaponry in markets where the al-Qaida-linked militants buy weapons.

In at least one case weapons were sold by a military commander directly to an al-Shabab commander, the confidential report said.

Friday's attack against the compound where the president and prime minister live began with a car bomb explosion, followed by an assault by gunmen on palace guards, said police Capt. Mohamed Hussein. Al-Shabab, an al-Qaida-linked group, claimed responsibility.

"President just called me to say he's unharmed. Attack on Villa #Somalia had failed. Sadly some lives lost. I condemn strongly this terrorism," the U.N. representative to Somalia, Nick Kay, said on Twitter. He added later: "The Somali people are tired of shootings, bombings and killings. It's time for a new chapter in Somalia's history."

The Interior Ministry displayed the seven bloodied and dead bodies of the attackers and said two others blew themselves up. The wreckages of two car bombs lay nearby.

The two others killed included a former intelligence commander and an aide to the prime minister, a Somali-American named Mohamud Hersi Abdulle, said Hussein.

"Apart from media headlines, #Shabaab will achieve nothing from it," a Twitter account run by the office of Hassan Sheikh Mohamud said. 'Don't be fooled by this "media spectacular'. This is another act of desperation from a dying animal."

Al-Shabab has been waging war in Somalia for years as it tries to oust a Western-backed government. Weakened from its apex of power, the militants are still able to launch vicious attacks.

The U.N. Monitoring Group report, published Feb. 6 and obtained by The Associated Press, found that many weapons given to Somalia's military can no longer be accounted for, including rocket-propelled grenades, hand grenades and bullets. The Monitoring Group "has developed serious concerns that the 1,000 AK-47s delivered from Uganda" are no longer in government control, it said.

The report said that two separate clan-based power bases in the government are procuring weapons with a clan-based agenda that works against peace in Somalia, including by distributing weapons to clan militias. A sub clan of the president's dominates weapons procurements and funnels them to Abgaal milita forces, it said.

"In addition, the Monitoring Group has also obtained documentary evidence corroborating information that a key advisor to the President, from his Abgaal subclan, has been involved in planning weapons deliveries to Al-Shabaab leader Sheikh Yusuf Isse 'Kabukatukade', who is also Abgaal," the report said

Terror free somalia we send my deeply condolence to -Permanent Sec of Somali PM and family.We are deeply saddened by your loss...may allah grant him. peace an place in jannat.

Mahmoud Hersi Abdulle from Ottawa, Canadian Somali R.IP