Israeli aircraft attacked three Hamas training camps in the Gaza Strip early Tuesday, causing no injuries, eyewitnesses in the enclave said.

An Israeli helicopter fired six missiles at two different sites northwest of Gaza city, both training camps for Hamas’s military wing, the Ezzedine al-Qassam Brigades, eyewitnesses said.

In addition, an Israeli aircraft fired four rockets at a Qassam training camp south of Gaza City, according to sources in Gaza.

There were no injuries in any of the attacks.

The Israeli military confirmed the strikes on the northern Gaza Strip, without mentioning the third one.

In a statement, the army said its “aircraft targeted two sites — a weapon manufacturing site and a weapon storage facility in the northern Gaza Strip.”

“Direct hits were confirmed. The sites were targeted in response to the continuous rocket fire towards southern Israel,” the statement read.