U2's European dates for The Joshua Tree Tour 2017 sold out in minutes, prompting the band to add more dates to the tour. In an official statement on U2.com, the dates added are:

Sun. 9 July: London, UK at Twickenham Stadium
Sun. 16 July: Rome, IT at Olympic Stadium
Wed. 26 July: Paris, FR at Stade De France
Sun. 30 July: Amsterdam, NE at Amsterdam Arena

Fan club presales will begin later this week, and the general ticket sale will happen Monday, Jan. 23.

UPDATE: The list above appears to be the only new shows that will be added in Europe. An e-mail from U2.com that's going out today begins with this (emphasis ours): "Four more shows have been added to complete the dates on the European leg of The Joshua Tree Tour 2017." The use of "complete" suggests that no more shows will be added. Although rumors have circulated for a while that a second Dublin show would be added, both Hot Press and the Irish Times are reporting that's not the case. "Speculation as to whether U2 will play a second Croke Park show has been ended with the band issuing a definitive 'No' through their Irish PR company," Hot Press reports.