The Israeli military said Sunday its soldiers returned fire from Syria in the Golan Heights, dpa reports.
Shots from across the border were fired in the direction of an Israeli patrol, an Israeli military spokesman said.
There were no casualties or damage on the Israeli side, he said.
It was not immediately clear whether the shots were fired by the Syrian Army or rebels.
There were no reports from Syria on the exchange of fire.
Israel captured most of the Golan Heights during the six-day Arab-Israel war in 1967 and annexed it in 1981.
Twenty-one Filipino UN peacekeepers were kidnapped by rebels earlier this month in an area near the Golan Heights. They were released after three days.
Israel has fired across the ceasefire line several times over the past year, in response to stray fire from Syrian troops fighting rebels inside the zone.