Turkish citizens in European countries, where Turkish authorities have established polling stations, have voted on the constitutional referendum. 
Turkish voters living in 31 European countries cast their ballots in 82 European-wide Turkish representations. 
According to the Turkish Supreme Election Board, as of Saturday, there were 1,136,921 Turkish voters out of the 2.5 million registered in Europe. 
Approximately 2.9 million Turkish expatriates are eligible to vote on the referendum. 
The April 16 referendum in Turkey addresses a host of constitutional reforms that would hand wide-ranging executive powers to the president. 
The referendum provides an increase in the number of MPs from 550 to 600 and the age of parliamentary candidacy will be lowered from 25 to 18 years. 

Source: QNA