GAZA CITY (Ma'an) -- Israeli military vehicles entered the Gaza Strip on Tuesday east of Deir al-Balah and al-Bureij refugee camps , witnesses said.

Four bulldozers accompanied by three military vehicles entered over 350 meters into Gaza, locals told Ma'an.

An Israeli army spokeswoman said there was "routine" military activity along the border.

Meanwhile, locals said Israel's navy opened fire at Palestinian fishermen in northern Gaza. An Israeli army spokeswoman said navy forces fired warning shots because the fishing boats deviated from the designated fishing area.

Under Israel's maritime blockade, Palestinians are forbidden from fishing more than three nautical miles from the coast. During the Oslo Accords negotiators had agreed to 20 nautical miles of fishing access along Gaza's coastline.