Prime Minister Binyamin Netanyahu on Thursday commented on the firing of a Grad rocket on Beersheba late Wednesday, saying, "I do not recommend that anyone test Israel's determination. We will not tolerate anyone bombing us. This is something that no country in the world would agree to and we will act accordingly."Two Grad-model Katyusha rockets struck Beersheba late Wednesday night for the first time since Operation Cast Lead in the Gaza Strip over two years ago.RELATED:Hamas outposts hit by IAF after grad fired on NegevGrad rockets fall on Beersheba neighborhoodOne rocket landed in the yard of a home, causing extensive damage. No injuries were reported but five people were treated for shock.Netanyahu made the comments at a meeting with Polish Prime Minister Donald Tusk, who said, "We are against any acts of silence and are not prepared to allow anyone to deny the existence of Israel. Poland will not let these things happen." Speaking on Iran, the Polish prime minister said that, "We cannot pretend that Iran's behavior is normal and that a terrorist is a freedom fighter."He told Netanyahu that "You have a real friend in Europe and it is important that both country's will strengthen each other's image."Netanyahu also discussed negotiations with Syria, saying that "If Syria seeks peace, it will find a loyal partner in Israel to achieve this goal."He added that it is hard to start negotiations with Damascus as long as it expects to see the results of the talks even before they begin. He also said that France and South America, among others, have been involved in mediation efforts between the Israel and Syria.