Israeli forces apprehended an unarmed Gazan man who broke through the border fence in the northern Gaza Strip and crossed through into Israel, near the community of Zikim, The Times of Israel reported Wednesday. It was third infiltration attempt this week.

The man was turned over to the Shin Bet for questioning.

Earlier in the day two men from Gaza breached the security fence inside Gaza and set a fire to a platform near the Israeli border, though they did not manage to enter Israeli territory. The IDF responded by firing on two Hamas observation posts in Gaza. Israel holds Hamas responsible for all hostile activity coming from Gaza because the terror group maintains complete political and military control over the enclave.

On Tuesday three Gazans, who were armed with knives and grenades, managed to reach an army base 20 kilometers (12.5 miles) inside of Israel. The three were arrested, but it is uncertain when they managed to cross the border.

“This was an incident that shouldn’t have happened. We are investigating it and will learn lessons from it,” IDF Spokesperson Brig. Gen. Ronen Manelis said in a statement. He added that the results of the infiltration could have been worse.

The three were transferred to the Shin Bet for questioning. While the weapons in their possession suggests that they had violent intentions, there have been cases where Gazans have crossed into Israel in order to be apprehended and sent to an Israeli jail, instead of having to live in Gaza.

The three attempted infiltrations come in the wake of a large-scale military exercise conducted by Hamas involving some 30,000 of its fighters earlier this week. The exercise was seen by some as an attempt by Hamas to cement its control over Gaza.

The infiltrations also come ahead of the “March of Return,” a protest being organized by Hamas and Palestinian Islamic Jihad in the coming days. The terror groups are encouraging civilians to approach the border fence with Israel.

[Photo: TV7 Israel News / YouTube]