WASHINGTON — At least 67 journalists are imprisoned across Africa, reflecting the continent’s ongoing struggle for a free press, according to a report released Thursday. The cases in Africa contribute to a global total of 361 journalists jailed as of Dec. 1, according to the Committee to Protect Journalists, or CPJ. It is the second-highest number ever recorded by CPJ. Muthoki Mumo, the Africa program coordinator at CPJ, said the report highlights a global trend in which authoritarian regimes weaponize laws against journalists, using national security, anti-terror and cybercrime legislation to justify crackdowns. While these trends are not confined to