Close to two dozen employees of Zaman, one of Turkey’s largest newspapers, and other media companies around the country were detained on Sunday. The country’s president, Recep Tayyip Erdoğan has defended the raid, saying that the people arrested were part of a “dirty” plot to overthrow the government.

“This has nothing to do with press freedoms,” Erdoğan said at a press conference on Monday. While the European Union criticized the raid, Erdoğan dismissed their objections, telling the organization to “save its wisdom for itself.”

The arrests were made over a massive corruption investigation that broke on December 17, 2013, when dozens of people, including the sons of three cabinet ministers, were detained on charges of mass corruption that included bribery, money laundering, fraud and gold smuggling.

The evidence included phone calls between Erdoğan and his son, in which the then-prime minister seemed to be discussing hiding millions of dollars in cash. The tapes were secretly leaked via Twitter and YouTube, leading to angry denials from Erdoğan and an attempted social media crackdown.

The initial investigation is thought to have been carried out by officials loyal to famous cleric Fethullah Gulen, a rival of Erdoğan’s who has been living in self-imposed exile in the US for more than a decade. Gulen’s network of supporters is believed to run some schools, media outlets and police academies where employees and students are loyal to the cleric.

Sunday’s arrests took place at media outlets with strong ties to Gulen, including Zaman, and whose reporting has been critical of the government.

The relationship grew increasingly strained until the corruption charges were brought last year and an all-out rivalry ensued.

Those arrested on Sunday are being charged under Turkey’s vague anti-terrorism laws, which were given a boost in early December with the passing of a security bill. The law increased police powers, allowing them to search and detain people with little to no evidence, and without authorization from prosecutors.

No evidence has yet been presented against the dozens taken into custody, and human rights organizations and the United States have joined the EU in its condemnation.

(Photo provided by Murat Sezer/Reuters.) This conversation originally aired on PRI’s The World.