An Israeli defense body says it is increasing its efforts to crack down on attempts to smuggle items to the Gaza Strip that Israel prohibits on security grounds.

COGAT said on Thursday that it banned used auto parts for four-by-four vehicles from entering the Palestinian territory after several attempts to send them to Gaza for the ruling Islamic militant group Hamas.

It says it's also fined a telecommunications company for trying to smuggle cables and optical fibers into Gaza. It says the company is suspected of trying to get the equipment to Gaza's militant groups. It would not name the company.

Israel and Egypt imposed a blockade on Gaza in 2007 after Hamas seized power. Israel bans the entry of equipment to Gaza that could be used for military use.