A vehicle loaded with explosives was detonated at a check point close to the national theatre building located not far from the presidential residence; this led to the death of 4, and 5 were injured, the local Garowe Online reported.
The death toll may rise, the media outlet reported, citing police.
Earlier in the day, Radio Dalsan outlet speculated that the attack was carried out by the Al-Shabab militant group.
Prior to the recent incident, on 28 February, media reported another car bombing, this time in Mogadishu's busiest street, Maka Al Mukarama, which is full of bustling hotels, shops and restaurants.
Somalia has been engulfed in violence since the eruption of a civil war between clan-based armed factions in the early 1990s. Al Shabaab, which has links to the al-Qaeda* terrorist organisation, has conducted numerous attacks throughout the country in an attempt to impose a radical version of Sharia law.
*Al-Qaeda is a terrorist group banned in Russia