If you were on Twitter late at night, you might have noticed a lot of accounts tweeting bizarre messages in Turkish that all began with a swastika.
That's because a hack pushed a message attacking Holland and Germany and supporting Turkish President Recep Tayyip Erdogan. It affected hundreds of users, including high-profile media accounts like the BBC North America and Forbes, as well as Sprint CEO Marcelo Claure, Duke University and Amnesty International, according to The Sun. Those tweets have since been deleted.
Here's what the hacked tweets looked like.
It targeted a lot of accounts.
It also changed the profile photos and banners to Turkish flags and symbols.
A quick translation
The hashtags #Nazialmanya and #NaziHollanda translate to "Nazi Germany" and "Nazi Holland" in Turkish.
The Sun translated "Bu size ufakbir [hand emoji] #osmanlitiokadi" as "This gives you a little #OttmanSlap." The tweet also references April 16, the date of a Turkish referendum that may give Erdogan much more power. The European Union has warned Turkey this may make it harder for the country to join the EU, The New York Times reports.
Tensions are high between Germany, the Netherlands and Turkey. Turkey's foreign minister was denied entry into the Netherlands Sunday. Erdogan responded by calling the Dutch "Nazi remnants and fascists."
Hours later, another Turkish minister was blocked from the Turkish diplomatic compound in Rotterdam and escorted back to Germany. The mayor of Rotterdam, Ahmed Aboutaleb, said the Turkish minister was an "unwanted foreigner," The Telegraph reports.
The Dutch elections are scheduled for Wednesday. One of the leading candidates, Geert Wilders, has touted an anti-immigrant, anti-Islam platform.
The timing was not lost on some observers.
Users were quick to blame Twitter.
However, technically, Twitter wasn't at fault, but a third-party app.
Engadget reports a popular add-on app called Twitter Counter was the source of the vulnerability that allowed for hacked accounts.
The tweets stopped around 4 a.m. EST.
Those who use Twitter Counter should change their password and check to make sure any apps that have access to accounts are legitimate.