Senior Somali police officer General Said Dahir Said told Somalia Report that four men parked the vehicle inside the CID compound and were subsequently detained by soldiers. The four were being interrogated when the vehicle exploded.
"I think one of the arrested men detonated the carbomb, because sometimes they use mobiles or other devices to remote-detonate the bombs," said General Said. He said two government soldiers had been injured in the blast.
Thick black smoke rose from the scene, and some distance away there were shattered windows and scattered pieces of twisted metal, suggesting the blast had been severe.
"It was a very powerful blast," said witness Mohamed Dahir.
“We are still trying to confirm the casualties, but I can say that the enemies of peace who carried out this attack were not martyrs, but murderers,” a senior TFG official, who asked not to be named, told Somalia Report.
“We arrested four men, but we also believe that there may be some other people involved, who might have stayed outside the building, were left behind to detonate the car bomb, using either a cell phone or just remote,” senior military officer Aden Kaalmooy Dhaqane told local reporters. "We will investigate it and hope we bring the criminals to justice."
The militant group al-Shabaab has claimed responsibility for the attack on the TFG base in Mogadishu.
A statement from al-Shabaab on their ostensible Twitter page said, "A remote controlled car bomb inside the largest TFG compound killed 13 police apostate soldiers and injured more than 20. At least seven TFG police vehicles were destroyed and a large portion of the building collapsed as a result of the explosion.” Adding, "the mujahideen successfully parked the explosive-laden car inside the compound before remotely detonating half an hour later, and at least seven TFG police vehicles were destroyed."
Earlier, al-Shabaab said today's explosion is part of a new series of attacks that will target the 'crusaders' and TFG bases in the capital. “It was a successful attack, and many attacks will follow. We advise our muslim brothers to stay away from the bases of the disbelievers," an al-Shabaab spokesman said.