Incorrect reading, all Seventy weeks are fulfilled:
24 "Seventy weeks are determined For your people and for your holy city, To finish the transgression, To make an end of sins, To make reconciliation for iniquity, To bring in everlasting righteousness, To seal up vision and prophecy, And to anoint the Most Holy.
25 "Know therefore and understand, That from the going forth of the command To restore and build Jerusalem Until Messiah the Prince, There shall be seven weeks and sixty-two weeks; The street shall be built again, and the wall, Even in troublesome times.
26 "And after the sixty-two weeks Messiah shall be cut off, but not for Himself; (Dan. 9:24-26 NKJ)
That's where verse 26 should have ended because after Christ was crucified nothing happens until 70 AD, well after the 70 weeks have ended.
Chapter and verse references aren't the Word of God, men invented them with the printing press a few hundred years ago. They got it wrong in verse 26.
What follows after Christ's crucifixion AFTER the 69th week, after the 70th week, isn't discussed in Daniel 9:24.
What follows is discussed in Daniel 9:26B onward:
And the people of the prince who is to come Shall destroy the city and the sanctuary. The end of it shall be with a flood, And till the end of the war desolations are determined.
27 Then he shall confirm a covenant with many for one week; But in the middle of the week He shall bring an end to sacrifice and offering. And on the wing of abominations shall be one who makes desolate, Even until the consummation, which is determined, Is poured out on the desolate."
(Dan. 9:26-10:1 NKJ)
The temple is destroyed in 70 AD. Roman Emperor Hadrian renames Israel "Palestine" destroying the nation after the followed the false Messiah Simon Bar Kokhba, selling them as slaves throughout the earth in AD 131 or so:
The end of it shall be with a flood, And till the end of the war desolations are determined. (Dan. 9:26 NKJ)
20 "But when you see Jerusalem surrounded by armies, then know that its desolation is near.
21 "Then let those who are in Judea flee to the mountains, let those who are in the midst of her depart, and let not those who are in the country enter her.
22 "For these are the days of vengeance, that all things which are written may be fulfilled.
23 "But woe to those who are pregnant and to those who are nursing babies in those days! For there will be great distress in the land and wrath upon this people.
24 "And they will fall by the edge of the sword, and be led away captive into all nations. And Jerusalem will be trampled by Gentiles until the times of the Gentiles are fulfilled.
(Lk. 21:20-24 NKJ)
Then Daniel discusses another week of years that appears thousands of years later, in the end time:
27 Then he shall confirm a covenant with many for one week; But in the middle of the week He shall bring an end to sacrifice and offering. And on the wing of abominations shall be one who makes desolate, Even until the consummation, which is determined, Is poured out on the desolate." (Dan. 9:27 NKJ)
25 "And there will be signs in the sun, in the moon, and in the stars; and on the earth distress of nations, with perplexity, the sea and the waves roaring;
26 "men's hearts failing them from fear and the expectation of those things which are coming on the earth, for the powers of heaven will be shaken.
27 "Then they will see the Son of Man coming in a cloud with power and great glory. (Lk. 21:25-27 NKJ)
Christ desolates the Antichrist Desolator.
Because the Antichrist rules over Daniel's 4th kingdom, with 10 horns or Roman empire, Daniel says its the "people" of the Antichrist prince who is to come, who destroys city and Temple, which they did in 70 AD. And Hadrian did the "desolations" when he forbade Jews to live in Israel selling captive Jews as slaves to the nations.