"Trump in his speech said that, he wanted to bring peace. Peace is not by pouring salt to open wound by taking the holy city Jerusalem and declaring it as the capital of unacceptable, illegitimate state according to Jewish religion," he added.
Describing the decision as more ammunition given to Israel, who bosses over the others in the region, Weiss noted that declaring Jerusalem as Israel's capital is going to cause further quarrel between Jewish and Muslims.
Protestors chanted against Israel and Trump's decision on Jerusalem, carried banners reading “Stop the occupation in Palestine now”, “Jerusalem belongs to Palestinians” and "We reject Trump's decision". The event ended without conflict.
"Today we gathered here to protest Trump's decision, declaring Jerusalem to be capital of Israel," Naem Baeg, Director of Islamic Circle of North America (ICNA) interfaith programs said.
"Now it is up to the international community and Muslim World, countries like Turkey, France to lead the others and work for the peace," Baeg added, saying that with this decision the U.S. practically took itself outside of the peace process.
"We believe that this is a very bad decision. The Palestinians over there are already living in horrible condition. I know that because half of my family live there," Mohammad Shami, a young Palestinian demonstrator said. "This will further escalate those problems that Palestinians are facing."
Meanwhile, thousands of demonstrators also marched in Times Square, New York.
Demonstrators chanted against Israel and Trump's decision on Jerusalem, shouting "Free, Free Palestine, Long live Palestine," while carrying banners reading "This is unacceptable, Palestine will be free,” “Israel is a terrorist, Palestine is free” and "We reject Trump's decision". The event ended without conflict.
"The Trump government should re-evaluate its decision," a student of New York University, Ahmad M. (22), told Anadolu Agency. "The Israeli state has been shedding blood on the holy land for decades, saying their cause is sacred. What religion allows this?"
Another demonstrator, Mohammad Nazeef, who has been in the U.S. for 10 years said he came to the country because he thought the U.S. has respect to everyone beliefs. However, racism is on rise since Trump has been elected as President.
"I am not sure if Trump wants to arrange a new Crusade but in the social circle, people's behaviors against me have changed so much," Nazeed said. "I seriously consider leaving the United States."
During the massive demonstration under intense security measures, the New York police had to warn some demonstrators to stay in the designated areas.
On the other hand, a small group of pro-U.S. and Israelis opened both American and Israeli flags and catcalled the demonstrators from across the street.
Jerusalem remains at the heart of the Israel-Palestine conflict, with Palestinians hoping that East Jerusalem -- now occupied by Israel -- might eventually serve as the capital of a future Palestinian state.