Sala, 29, who works for the newspaper Il Foglio and the podcast company Chora Media, was detained in Tehran on Dec 19, according to the Italian foreign ministry.

Italy’s foreign minister Antonio Tajani on Saturday declined to say whether the case might be linked to the arrest of an Iranian in Italy this month at the request of the US.

The case of the Italian journalist being held in Iran is “complicated”, but Rome hopes to bring Sala home quickly, Tajani said.

“Italian national Cecilia Sala travelled to Iran on Dec 13 on a journalist visa and was detained on Dec 19… for violating the laws of the Islamic Republic,” a statement by Iran’s culture ministry said, according to IRNA.

Chora Media said Sala had left Rome for Iran on Dec 12 with a valid visa and had conducted several interviews and produced three episodes of her Stories podcast. She had been due to fly back to Rome on Dec 20.

Sala has been in contact by phone with her family and the Italian embassy in Tehran was notified of her detention, the statement said.

In recent years, Iran’s security forces have arrested dozens of foreigners and dual nationals, mostly on charges related to espionage and security.

Rights groups have accused Iran of trying to extract concessions from other countries through such arrests. Iran denies taking prisoners to gain diplomatic leverage.