Tanzania’s jailed opposition leader Tundu Lissu will begin a hunger strike Monday to protest prison authorities’ alleged refusal to allow court-ordered private consultations with his lawyers, his lawyer said Saturday.

Lissu, who survived being shot 16 times in a 2017 assassination attempt, faces a treason charge carrying a possible death sentence. The leader of Chadema, Tanzania’s main opposition party, has been detained for more than 18 months, with a final judgment scheduled for Nov. 6.

The lawyer, Rugemeleza Nshala, said Lissu told him of the planned strike during a meeting in prison.…