NEW : It urges Lebanese , Israelis ` ` to exercise maximum restraint '' U.N. Secretary-General Ban Ki-moon released a statement through his spokeswoman , condemning the attack . Israel says rockets fired from Lebanon hit open spaces in northern Israel . Israel says it fired 12 to 18 artillery shells into southern Israel in retaliation . There have been no injuries , and no one has claimed responsibility for rocket attack .
NEW : It urges Lebanese , Israelis ` ` to exercise maximum restraint '' Israel says rockets fired from Lebanon hit open spaces in northern Israel . Israel says it fired 12 to 18 artillery shells into southern Israel in retaliation . There have been no injuries , and no one has claimed responsibility for rocket attack .