We were camping on the coast of the gulf of oman just north east of masirah and could not sleep due to high humidity. on exiting our tent we stood up and walked around the camp area and tried to cool down with water. in an instant a very bright blue purple beam of light came vertically down from space and made contact with the desert sand. there was a low hum like a transformer sound during the event that was very powerful. within two seconds the beam disappeared and did not return. we can not explain this event but know it was real and very powerful. we did not witness any marks on the ground or any craft etc. after this event we were very confused as to what had happened but also very elated as to its extreme brightness and powerful low frequency hum. this was a very awe inspiring experience for us and we did not want to tell anyone for fear of ridicule.