At least one person was killed and five others wounded in car bomb blast in the Somali capital Mogadishu, officials and witnesses said Saturday.

Police said one person was killed after a bomb planted in the vehicle he was travelling in went off at a key Sanaa junction in the north of Mogadishu. Five other people including the driver of the government vehicle were injured.

"We believe the bomb was planted in the car. One person is killed and five other people, including the driver of the car and four bystanders, were injured in the explosion," a police officer Muumin Ali, at the scene of the explosion told Xinhua.

Witnesses said the car carrying two occupants went in flames following the explosion and the driver managed to escape but other individual who was identified as former government officials burned to death in the car.

Mohyadeen Hassan Juris, Yaqshiid District commissioner , who spoke to reporters confirmed the death of a person in the blast but would not confirm of his identity, saying an investigation will be carried out into the blast.

Juris also said that he believed the explosion was caused by bomb planted in the vehicle which he said was owned by a government's Ministry of Housing and General Works.

This is the second explosion in a week that targets government officials. Another vehicle with two lawmakers was hit by a bomb planted in it in Mogadishu this week. The government MPs survived and civilians were injured in the explosion. The rebel group of Al Shabaab claimed responsibility for the explosion.

Al Shabaab this week claimed they launched more than 100 attacks against government and AU troops in Somalia and pledged to increase their attacks during the remainder of the holy month of Ramadan.