Mahmoud Ramahi MP, from Ramallah in the occupied
West Bank, will be kept in detention for a further four months.
A court session will confirm the new order in the next few days.
Mr. Ramahi was arrested on 10 November 2010, and has been held in administrative detention ever since. A previous period in Israeli detention ended with his release in March 2009 after two-and-a-half years spent in prison.