ISTANBUL (AP) — Istanbul’s jailed mayor, Ekrem Imamoglu, was brought to the city’s main courthouse on Sunday to face questioning as part of a newly launched investigation into possible charges of espionage.

Hundreds of his supporters gathered outside in a show of support for the opposition politician considered to be a rival to President Recep Tayyip Erdogan.

The espionage investigation, launched two days ago, centers on alleged links between Imamoglu’s political campaign and a man arrested in July accused of conducting intelligence activities on behalf of foreign states. Imamoglu’s former campaign manager, Necati Ozkan, and journalist Merdan Yanardag also face questioning as part of the probe.

Held in pretrial detention since March on corruption charges he denies, this was the first ti

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