It is the third such case over the past two weeks.
On May 29, police detained a journalist protesting the changes saying she had broken laws on holding mass gatherings.
The constitutional amendments will allow President Nursultan Nazarbaev to run an unlimited number of times for reelection.
SUBSCRIBE For regular news and analysis on all five Central Asian countries by e-mail, subscribe to "RFE/RL Central Asia Report."
On May 29, police detained a journalist protesting the changes saying she had broken laws on holding mass gatherings.
The constitutional amendments will allow President Nursultan Nazarbaev to run an unlimited number of times for reelection.
RFE/RL Central Asia Report
RFE/RL Central Asia Report
SUBSCRIBE For regular news and analysis on all five Central Asian countries by e-mail, subscribe to "RFE/RL Central Asia Report."
