Egypt's public prosecutor has ordered the detention of 29 people suspected of espionage on behalf of Turkey and joining a terrorist organization, state news agency MENA reported Wednesday.

According to the results of an investigation by the General Intelligence Services, the group has been recording phone calls and passing information to Turkish intelligence as part of a plan to bring the Muslim Brotherhood back to power in Egypt, MENA said.

The nationalities of the suspects were not specified. They are also accused of money laundering and trading currency without a license.

Turkey's political relations with Egypt have remained rocky since mid-2013, when Mohammed Morsi — Egypt's first freely elected president and a Muslim Brotherhood leader — was ousted in a bloody military coup.