Somalia's Public Works Minister Abdullahi Sheikh Abbas was killed after an attack on his convoy in the capital, Mogadishu.
Abbas, who grew up in Dadaab camp in Kenya was the youngest member of Somalia's new cabinet.
He was shot near the presidential palace after a car carrying him approached and trailed another vehicle carrying the auditor general, prompting his bodyguards to open fire.
He became Somalia's youngest Member of Parliament last November, aged 31, when he defeated a former minister.
It was not immediately clear what prompted the shooting.
Security concerns are high in Somalia's capital, Mogadishu, as the Al- Shabaab armed group continues to target the palace, military facilities and hotels with suicide car bombings and other attacks.
The country held elections in February and Mohamed Abdullahi Farmajo became the new president in a surprise result.
