Since then, Israeli forces have killed at least 124 Palestinians and injured thousands more. According to the military, the bomb "went off during the clearing procedure".
"We will not give up our duty to the blood of the martyrs shed by the occupation, and we know how to respond to this risky escalation", Islamic Jihad said in a statement.
The ministry identified those killed by tank fire as Hussein al-Amour, 25, and Abdul Haleem al-Naqa, 28.
Palestinians inspect an Islamic Jihad observation post after it was targeted in Israeli tank shelling, in the southern Gaza Strip May 27, 2018.
No injuries were reported either from local sources or the IDF.
One of the targets, in the southern town of Rafah, was a facility of the Islamist movement's military wing, the Ezzedine al-Qassam Brigades, the sources said.
Speaking at the weekly Cabinet meeting on Sunday, Israeli Prime Minister Benjamin Netanyahu said that Israel would not "tolerate attacks against us from the Gaza Strip".
The naval commandos brought with them automatic weapons, explosives and fragmentation grenades but at the time, the Israel Defence Forces succeeded in stopping the attack.
Israeli authorities are also constructing an underground barrier beneath the Gaza-Israel boundary to stop Hamas from digging tunnels into Israeli territory.
No Israelis have been killed in the clashes.
According to Gaza medical officials, more than 115 Palestinians have so far lost their lives by Israeli fire since the border rallies began in late March.
It said troops responded with tear gas and live fire.
The death of the baby inflamed Palestinian passions and led to a deluge of condemnation against Israel for its heavy-handed response to the border protests.
Defence Minister Avigdor Liberman said in a statement the barrier would deny the Hamas militant group another strategic capability.
The Defense Ministry has started construction on an underwater barrier, which will stretch from the southern Israeli community of Zikim out into the Mediterranean to stave off Hamas infiltration by sea.
Journalist blocked on Twitter by Trump talks about winning case against president
US President Donald Trump has no right to block his Twitter followers who criticize him on the social network. To do so, District Judge Naomi Reice Buchwald said, would be a violation of the right to free speech.