Lieberman did not provide evidence to support his claims.
"It is time for the Israeli authorities to stop fabricating lies to justify murder and it is time to stop targeting Palestinian journalists". Israel's military said it was unaware of the incident.
The six-week protest, which began on 30 March marking Palestinian Land Day, is set to end on 15 May - the 70th anniversary of the Palestinian Nakba (Catastrophe), in which more than 750,000 Palestinians were forcibly displaced by Israeli forces in 1948 Arab-Israeli war. He said Murtaja had used a drone to collect intelligence on Israeli forces along the border.
The authorities have rebuffed global calls for an investigation into the killings, and Prime Minister Benjamin Netanyahu on Monday warned that his country would "hurt" anyone trying to attack it.
Shehri would be the 34th Palestinians killed by Israeli fire over the past two weeks, according to Palestinian tallies.
A video has emerged of Israeli soldiers celebrating as they shoot an apparently unarmed Palestinian man.
Most died during major protests along the border but others have been hit by tank fire.
"Start thinking not how to destroy Israel but how to coexist with Israel", he added. But he said a Palestinian's affiliation to an organization can not be the reason for opening fire, but rather what action the person took that posed a threat, according to the Israeli army's rules of engagement.
It said inside the van he was beaten by Hamas police, leading to his eventual hospitalisation.
In the video, the Palestinian man stands by the border fence as the snipers line up their shot, CNN reports.
"To take a situation from the battlefield, when soldiers are under stress and explosive devices are being thrown at them and attempts are being made to infiltrate, and to take their human response and judge them from the armchairs in Tel Aviv?"
Israel Defence Forces said in a statement that the video was filmed on Friday, Dec. 22, 2017, during "a violent riot".