Saw this on US broadcast TV back in the late 60s or early 70s. Set in that time frame. Some kind of flying saucer had landed, possibly in Mexico. Possibly crashed. Scene I particularly remember, alien had trapped a woman,(investigator?) on it's craft. Used a ray-gun type device to begin to disrobe her. Didn't get far before she was rescued. Besides it was TV.
Discharge from the device looked like 'sparkler' fireworks. Very short skirt, coordinating jacket.
I suppose it could have been an episode from some series.
Thanks for your help!