There was once I flew out of SIN at night and less than 2 minutes after take off the entire cabin was flashing green. Looking out of the window and traced the source of the ground.
I wrote to the local Civil aviation authority only to get a reply they have received numerous reports from airlines but they can't do much as the lasers are originating from the Indonesian neighbouring island south of Singapore.. outisde their jurisdiction.
The only consolation I got was they said they have reported these incidents to their counterparts in Indonesia.