The Seattle Police Department, which put rainbow-coloured decals on their patrol cars, said a group of people blocked the parade route for about 30 minutes to hold a sit-in in honour of Charleena Lyles, the black mother slain by city police a week ago.
They were heard chanting "Don't be quiet, shout out, gays exist!" over beating drums.
"Governors, governments, states change and we stay".
Police barricades, riot-control vehicles and buses were dispatched to the area Sunday afternoon and a helicopter buzzed overhead. Police officials turned people away who were any way associated with the march. Video from the scene showed Bram Janssen being taken into a van by police officers. He was released later Sunday.
Organizers say 27 people who tried to go on with the banned event were detained, including two minors and a Danish activist.
A group of NGOs announced on Wednesday that they planned to file a criminal complaint against the head of the nationalist Alperen Ocakları's İstanbul branch over his statement.
The Istanbul governor's office said it chose to prevent the demonstration out of concern for the security of marchers, tourists and residents.
In this instance, the governor's office stated that they never received a valid parade application, but organisers of Istanbul Pride rejected those claims.
In downtown Minneapolis on Sunday, activists briefly disrupted a pride march by bringing attention to lingering anger over the death of Philando Castile, and the acquittal of Jeronimo Yanez, the officer who shot him, according to a report in the Star Tribune. Between 200 and 300 gay rights activists gathered for the banned parade. It also insists that perpetrators of hate crimes are prosecuted.
"We would like to underline once more that we are not in a particular place in a particular city but we are everywhere and we do not want our voice to be heard just for one day but we want to speak everyday." the Istanbul Pride committee said.
On the first anniversary of the Stonewall incident, a civil rights demonstration was held in the same neighbourhood, an event which later became the current NYC Gay Pride, now considered one of the largest LGBT events in the world. When thousands set to the streets in defiance of the ban, police deployed water cannon and tear gas. In 2016, amid a spate of deadly attacks blamed on the ISIS or on outlawed Kurdish militants, the event was banned again but participants still tried to gather.
The divide has disrupted some other pride events this month.
This year's LGBT parade in Istanbul fell on the first day of Eid al-Fitr, a religious holiday celebrated by Muslims worldwide to mark the end of Ramadan, the Islamic holy month of fasting.