A bomb blast killed a senior regional government official and his son in the southwestern Somali city of Baidoa as per state-owned Radio Mogadishu.

Media reports said Hassan Ibrahim Lugbur, the South West State's Justice Minister, and his son were among the dead.

It is worth noting that at least seven people were injured in the attack and taken to nearby hospitals.

No particular group claimed responsibility for the bombing as of yet, but the state's head, Abdul Aziz Mahmoud Hussein, blamed the bombing on Al-Shabaab movement.

It is worth noting that Al-Shabaab conducted on Wednesday a massive suicide raid in southwestern Somalia near the Ethiopian border; killing Marka District Commissioner Abdullahi Ali Wafow.

Al-Qaeda-linked group Al-Shabaab has been attacking Somalia's federal government for 15 years.

An African Union force, which includes soldiers from five countries, such as Ethiopia and Kenya, has supported the government in its fight against terrorists.

Read more: Al-Shabaab attacks AU base in Somalia

The terrorist group has been expelled from Somalia's main urban areas, including Mogadishu, in 2011. However, remnants of the group station themselves in the countryside. 

Somali officials confirmed on July 17 that an attack targeted a hotel frequented by regional authorities in the city of Jowhar, in the Hirshabelle region, southern Somalia, leaving multiple casualties.

Anadolu Agency quoted senior officials as saying that the "blast was the result of a car bomb that targeted Nur Dob hotel in the town of Jowhar, wounding several people including local authorities, among them the health minister of Hirshabelle state." 

Although no group has claimed responsibility for the bombing, Al-Shabaab has previously claimed responsibility for similar strikes, Somali media mentioned.