One of the fishermen said the navy fired several rounds of live ammunition at the fishermen and their boats, in the Sudaniyya area, northwest of Gaza; no injuries were reported.
The Israeli navy frequently attacks Palestinian fishermen and their boats, depriving them the right to fish, within the six nautical miles currently allocated for them.
The attacks led to dozens of casualties, and excessive property damage.
As part of the ceasefire agreement of November 2012, Israel agreed to allow the Palestinians to fish within six nautical miles, but unilaterally decreased the allotted area to three miles.
Last May, Israel decided to allow the fishermen to fish within six nautical miles, but the Israeli navy continued to attack them, even within the three nautical miles.
Under the Oslo accords of the mid-nineties, Palestinians are supposed to be allowed to fish within 20 nautical miles off the Gaza shore, but Tel Aviv has constantly violated the agreement.