A Hamas official on Sunday said that Israel has several undercover spies operating in "sleeper cells" in the Gaza Strip, awaiting instructions to carry out special operations.

Speaking on Hamas television station Al-Aksa TV, the official said that the organization had a recording of one such operative speaking with Israeli intelligence officials.

The recording allegedly proves that Israel and Fatah cooperate to gather information on Hamas activities.

The Hamas official said that through the discovery of the "sleeper cells" Hamas has learned Israel's methods for connecting with spies in Gaza.