Israeli security forces received an alert Sunday indicating that the electric fence on the Egyptian border had been breached but ruled out the possibility of an infiltration into Israel.
Earlier on Saturday, it was reported that a Qassam rocket had landed in an open area the Shaar Hanegev Regional Council. It was later reported that a blast had been heard but not hit was spotted.
Palestinians in the Gaza Strip reported an IDF tank had fired a shell at an agricultural area inside the Strip and adjacent to Nahal Oz. No injuries were reported.
Security incidents were also reported in the Sinai Peninsula on Saturday. Islamist militants driving vehicles mounted with machine guns opened fire on a police checkpoint in Egypt's Sinai peninsula, killing two policemen and injuring a third in a daring attack, security officials said.
Militants have stepped up their activity in Sinai since last year's uprising, taking advantage of a security vacuum after many members of the hated police force disappeared from the streets.
Reuters and Elior Levy contributed to this report