I saw videos that were NOT from overseas - it was dark, not broad daylight. I thought NYC but may have been north Jersey.
They were cheering in Jersey City.
Might have been Paterson, a city in North Jersey. Paterson has a lot of Islamic immigrants and was the temporary home of Mohammed Atta, I believe the summer before 9/11.
I live in NJ and remember hearing local radio commentators (Curtis Sliwa might have been one) saying they were getting calls from listeners that Muslims in NJ were celebrating. I tend to believe these contemporaneous reports were true. Whether anyone captured footage, I don't know.
Also I remember some leftists trying to make a big deal over an allegedly "Israeli" camera crew --who for some reason were filming in Jersey City-- who were seen "cheering" as the towers fell. But afaik it was never made clear who those alleged Israelis were. And, whether this alleged group were ever determined to be Jewish or Muslim Israelis (yes there are Muslim Israelis).