The researchers also uncovered several rooms adjacent to the church and additional chambers yet to be excavated were revealed by a ground-penetrating radar inspection.
The site was inscribed onto UNESCO’s World Heritage List in 1985 under Historic Areas of Istanbul, along with other points of significance in the city.
Thirty arrests were made and more than 25 firearms seized, police said, adding hostage negotiators were still at the scene.
Kastner has been fighting against Judensaus since 2002, when he and a colleague paraded in front of the Cologne Cathedral wearing sandwich posters printed with the word “Judensau.”
“This sculpture was meant as an insult to Jewish citizens,” The evangelical church’s pastor, Jürgen Kohtz said.
The act was done in a commentary on the government's health system's handling of the coronavirus outbreak.
In recent years, the council has been accused of pursuing an anti-Israel agenda, a claim rejected by its leaders
Trump warns governors he will deploy US military if they don’t control violence
During the holy fasting month of Ramadan, the nearby Martha Lutheran church stepped in to help, hosting Muslim prayers in Arabic and German.
There have been 423 recorded coronavirus cases and two deaths in the West Bank.