The Israeli army announced that access points to Israel from the Gaza Strip and occupied West Bank will be closed for 24 hours on Tuesday as Israel holds a general election.
The decision to close all checkpoints and crossings from midnight 2100 GMT Monday night was based on "security evaluations", the military said in a statement Sunday.
They would only open for humanitarian and medical cases, it added.
Polling starts at 7:00am local time on Tuesday and ends at 10:00pm local time in Israel's closely fought parliamentary election.
Israel usually shuts its borders with the Palestinian territories on public holidays in order to prevent possible attacks.