Editorial cartoonist Mohamed al-Amin is still among six Libyan journalists who remain missing, the Committee to Protect Journalists announced today.

Al-Amin and the five other journalists have reportedly expressed public opinions critical of Libyan leader Moammar Gaddafi.

According to CPJ, the other missing journalists are political writer and blogger Mohamed al-Sahim; Libyan Journalists Syndicate head Salma al-Shaab; local-new contributor Atef al-Atrash; former Arajin magazine editor-in-chief Idris al-Mismar; and Suad al-Turabouls, a correspondent for the pro-government Al-Jamahiriya.

The journalists have been missing since February, says CPJ, which today reported that at least 13 members of the media remain either missing or detained by Libyan forces.

“We call on Libyan authorities to release those journalists in their custody and to assist in efforts to locate those who are missing," CPJ executive director Joel Simon said.

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