A mortar shell was fired out of the Gaza Strip at an Israel Defense Forces patrol operating near the border fence on Thursday.
There were no injuries or damage caused by the attack.
The army said the soldiers were conducting routine activities adjacent to the southern Gaza area.
On Wednesday three rockets were fired from Gaza at Israel, all of which landed in open ground without causing damage.
One of the rockets landed close to the Erez crossing point between Israel and Gaza.
The rocket fire came after the IDF attacked terror operatives in Gaza earlier in the day.
Reports said between three and 12 people were injured in that attack, which targeted two people on a motorcycle in Beit Lahiya, in the northern Strip.
The IDF said in a statement the strike was a “joint anti-terror operation” with the Shin Bet security service. It said “a hit was not identified.”
The intended target — an Islamic Jihad operative — escaped unscathed, according to the Ynet news site.