Abdul-Khaliq Abdullah arrested by UAE regime?

I woke up to the disturbing news that UAE regime arrested a few days ago UAE professor, Abdul-Khaliq Abdullah.  Is there any confirmation out there?  I hear that UAE is deliberately suppressing any news on the matter.  Abdul-Khaliq was a dear brother/friend/colleague at Georgetown.  He changed over the years and it has been paining me to see his tweets in praise of Gulf potentates. But this proves that with those tyrannical regime, loyalty at the rate of 99% is not enough: only 100% is acceptable.