She said this at an event here.
Banerjee had condemned the incident on Twitter last night also.
"Saddened at the killing of journalist Gauri Lankesh in Bengaluru. Most unfortunate. Very alarming. We want justice (sic)," she had written on the microblogging website.
The Press Club, Kolkata also condemned the killing and demanded that the culprits be booked at the earliest.
A candlelight vigil is scheduled to be held in front of the Press Club in the evening.
Disclaimer: No Business Standard Journalist was involved in creation of this content
