Gunfire echoed through several districts of the Somali capital, with smoke rising over residential areas after hours of sporadic battles. Police said they were conducting a large-scale security operation against heavily armed militias accused of launching mortar attacks on parts of the city.

The violence follows a deepening political crisis after President Hassan Sheikh Mohamud announced an extension of his term beyond its scheduled May 15 expiry, a move rejected by opposition leaders and several regional authorities.

Former prime minister Hassan Ali Khaire accused government forces of attacking his convoy on Wednesday as he prepared to participate in demonstrations against the extension. Witnesses also reported clashes near the residence of former president Sharif Sheikh Ahmed.

The unrest comes as opposition groups mobilize protests against Mohamud’s plan to advance constitutional reforms and move Somalia toward direct elections, a proposal critics say concentrates power in the presidency.

Somalia remains politically fragile, with divisions among rival clans and a continuing insurgency by Al-Shabab complicating efforts to implement nationwide electoral reforms.