From a report on Bloomberg: At least 25 verified international Twitter accounts (Editor's note: other outlets are saying the number is in hundreds) have posted content supporting Turkish President Recep Tayyip Erdogan in his feud with Germany and the Netherlands, with hashtags reading, in Turkish, "NaziGermany" and "NaziHolland." The accounts that were hacked include international news organizations such as the German newspaper Die Welt, Forbes Magazine, BBC North America, and Reuters Japan. It also targeted the Twitter accounts of the European Parliament, French politicians like Alain Juppe, Sprint Corp's CEO and President Marcelo Claure, among others.
:It was an incredibly bad week for Dutch-Turkish relations. Turkish voters go to the polls next month on April 16th to decide whether President Erdogan should be given more powers. In the lead up to this vote, Turkish diplomats in the Netherlands had been speaking at Dutch rallies to Turkish ex-pats in support of the referendum. But Dutch officials prevented the Turkish ministers from speaking, causing a dust-up between the two countries. [...] Even where some of the tweets have been deleted, the banner image of the Turkish flag sometimes remains, like on the account for Starbucks Argentina.
Twitter said in a statement, "We are aware of an issue affecting a number of account holders this morning. Our teams are working at pace and taking direct action on this issue. We quickly located the source which was limited to a third party app. We removed its permissions immediately."