RAMALLAH, Feb. 13 (Xinhua) -- The detention of a Palestinian teenager, who slapped an Israeli soldier, was extended on Tuesday for one month, according to an Israeli military court order.

The court hearing on Tuesday morning was held behind closed doors, and decided to extend the detention of 17-year-old Ahed Tamimi until March 11.

Tamimi has been detained since a night raid on Dec. 19, four days after a video of her slapping an Israeli soldier outside her home went viral on the internet.

The military court judge demanded all press leave the court room before the hearing began, citing the protection of the minor when her lawyer objected.

The Palestinian girl was seen raising her hand in victory sign as she walked into the court room with chains, whispering to her family members.

Tamimi's case has drawn wide public attention to Israeli military court procedures, which are often described by rights groups as discriminatory.

Amnesty International, a London-based international group focused on human rights, has called for Tamimi's release and accused Israel of "discriminatory treatment of Palestinian children."

Her mother Nariman Tamimi, who took the video of her daughter slapping the Israeli soldier, was also arrested on Dec. 20 and accused of incitement.

Both the mother and her minor daughter are held in Israeli prisons.