Israel has closed the Kerem Shalom crossing into Gaza after Hamas fired rockets from within the strip.
At least 10 people were injured with others seriously injured following the latest attack.
The armed wing of Hamas said it had targeted troops with short-range rockets.
Mediators in the Egyptian capital, Cairo, have been holding peace-talks aimed at securing a deal for a ceasefire in Gaza and the release of hostages held by Hamas.
In a statement, Hamas said the latest round had ended on Sunday and that its delegation would now travel to Qatar to consult with the group’s leadership.
The truce proposal is believed to involve a 40-day pause in fighting while hostages are released, and the release of a number of Palestinian prisoners being held in Israeli jails.
The main sticking point appears to be whether the ceasefire deal would be permanent or temporary.
Hamas is insisting any deal makes a specific commitment towards an end to the war, but Israel’s Prime Minister Benjamin Netanyahu rejected that on Sunday.
The war in Gaza began after waves of Hamas gunmen stormed across Gaza’s border into Israel on the 7th of October, killing about 1,200 people and taking more than 250 hostages.
During the subsequent Israeli military campaign in Gaza, more than 34,600 Palestinians have been killed and over 77,900 wounded.