(CNN) A Greek man said he missed the Ethiopian Airlines flight that crashed just after taking off from Addis Ababa by mere minutes, in a Facebook post that has now been shared thousands of times.

In a post called "My Lucky Day," Antonis Mavropoulos shared an image of what appears to be his boarding pass and says he arrived at his gate just after boarding had finished on Sunday morning.

"When I arrived, boarding was closed and I watched the last passengers in (the) tunnel go in. I screamed to put me in but they didn't allow it," he wrote.

The flight crashed six minutes after takeoff, killing all 157 people on board.

Mavropoulos says he was transferred to the next flight to Nairobi but was later told he was unable to board because security wanted to talk with him after discovering the plane had lost contact.

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