An Israeli flag was set on fire by protesters outside the Democratic National Convention (DNC) in Philadelphia as rmedia and social media postings reported that Palestinian flags were prominently displayed by activists at the Convention amid an apparent lack of American flags.

Hillary Clinton was confirmed Tuesday as the United States' first female Presidential nominee together with vice presidential pick, Virginia Senator Tim Kaine.

Shouts of “long live the Intifada” were heard as an Israeli was torched by a woman wearing a black bandana on her face lit the flag on fire, while a Palestinian flag was waved nearby.

The incidents took place outside the secure zone around the Wells Fargo Center in Philadelphia.

According to The Algemeiner, the presence of Palestinian flags at the DNC comes at a fragile time for pro-Israel Democrats, following major efforts — led by Vermont Senator Bernie Sanders, who competed against and lost to Hillary Clinton in the Democratic presidential primary — to take a “toughened” stance on Israel. Fissures have appeared on one issue that Democrats have long been united on: the Israeli-Palestinian conflict.

Their party, which has long commanded the vast majority of Jewish votes, like the Republican side has defined itself as pro-Israel — ensuring military aid to Israel and defending it on the world stage. But some Democratic delegates believe that should change.

When the Democratic Party platform was drafted in June, representatives of Sanders voters, pushed for the word “occupation” to be inserted into the section on the Israeli-Palestinian conflict. While the Democratic Party has long condemned Israel’s control of the West Bank, the wording change proved too controversial.

In the end, the platform echoed traditional bipartisan positions backing Israel: support for Israel’s security, a two-state solution to the conflict, the establishment of a Palestinian state and for Jerusalem to remain the capital of Israel.

It states that ‘’a strong and secure Israel is vital to the United States because we share overarching strategic interests and the common values of democracy, equality, tolerance, and pluralism.’’

The Republican Party also saw changes to its Israel policy in this year’s platform, taking a stronger pro-Israel stand.

The party abandoned the longstanding bipartisan commitment to the two-state solution and opposed “any measures intended to impose an agreement or to dictate borders or other terms.”

According to The Times of Israel, for some pro-Israel activists, even reliable friends like Virginia Sen. Tim Kaine, Hillary Clinton’s choice for running mate, represent a softening of Democratic support for Israel.

Kaine has been a vocal supporter of US security assistance to Israel, but like most Democrats bucked the pro-Israel lobby and Prime Minister Benjamin Netanyahu in supporting the Iran nuclear deal.

During the fight over the deal, Kaine absented himself from Netanyahu’s speech to Congress opposing the deal, but subsequently worked to smooth the waters between the prime minister and Senate Democrats.