The Israeli force exposed last week in Gaza was apparently planning to install a listening device, senior Hamad official Khalil al-Haya told the Hamas-run al-Aqsa television station Saturday.
Al-Haya also suggested that the special forces were trying to "build something" in Khan Yunis, saying that Iz al-Din al-Qassam, Hamas' military wing, was "there to block them."
According to al-Haya, the Israeli officer who died in the incident was shot early on in the fire exchange between the forces.
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"The Israeli enemy tried to score a security achievement in the Gaza Strip and thought the Strip was safe for it," al-Haya said in the interview.
"However," he continued, "the time has come to prove to the enemy that entering Gaza is no field trip."
Following the botched operation, Hamas fired hundreds of rockets and mortar shells at Israel while the military responded with massive airstrikes in the Strip. On Tuesday, a cease-fire was reached and calm has since been maintained.