Thomson ReutersJanuary 29, 2013 04:30
* President was abroad at time of attack, PM safe
* Al Shabaab claims strike, warns of more attacks
* Bomber infiltrated govt side this month - Shabaab (Adds govt, Shabaab comments)
By Abdi Sheikh
MOGADISHU, Jan 29 (Reuters) - An Islamist militant persuaded Somali government officials he had defected, then walked up to the president's palace compound on Tuesday and blew himself up near the gates, killing at least two soldiers, witnesses and rebels said.