In Gaza, during a search at the home of Hamza Abu Shanab, chief of staff to Hamas's leader in Gaza Yahya Sinwar, Israeli troops discovered a secret document titled "Founding a base in Turkey," The Times reports

This document outlines the creation of a sprawling military unit with a base in Turkey and terrorist cells in other countries to coordinate attacks against Israeli targets in neighboring countries, including Nato members, The Times says, citing files captured by the Israeli army in Gaza. 

Creating "a large number of combat cells and intelligence points in many countries" was supposed to take three years. According to the plan, Hamas agents were supposed to engage in sabotage, killings of Israeli soldiers and Mossad agents, as well as kidnappings of Israelis in various countries.

The newspaper doesn't say whether this plan was implemented to any extent or what stage the establishment of such a headquarters in Turkey was.