A Jordanian security court has sentenced a senior Muslim Brotherhood leader to 18 months in prison for criticising the United Arab Emirates on social media, according to a judicial source.

The court found politician Zaki Bani Rushaid guilty of souring ties with a foreign country. Mr Rushaid, the deputy head of the Muslim Brotherhood in Jordan, had criticised the UAE for designating the pan-Islamic movement as a terrorist group.

He was arrested in November after writing the UAE's rulers lacked popular legitimacy and served Israeli interests by playing a leading role in a crackdown on political Islam.

Leaders of the Muslim Brotherhood in Jordan led protests in the country’s capital Amman on 28 November 2014 in which participants were expressing their anger at the arrest of Mr Rushaid.