ROME, July 1 (Reuters) - Italian nationals are thought to be among the hostages taken by gunmen who stormed a cafe popular with foreigners in the capital of Bangladesh on Friday, a source at the Italian foreign ministry said.

The source said it was not clear how many Italians may be involved. Gunmen stormed a restaurant in the diplomatic quarter of Dhaka on Friday night and took about 20 people hostage, including several foreigners, in an attack claimed by Islamic State. (Reporting by Isla Binnie; editing by Silvia Aloisi and Andrew Roche)

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