The longest-serving Palestinian inmate in Israeli jail, revered by militants as the "dean" of their prisoners, is among more than 200 Palestinians set to be deported under the Gaza ceasefire and hostages-for-prisoners swap.

The 90 Palestinian prisoners that were in Israeli custody have been released, an Israeli prison service spokesperson said in a statement early Monday morning local time – about 80 minutes past the conclusion of Day 1 of the Israel-Hamas ceasefire and hostage exchange deal.