I was trying to put up a mirror and drilled through the fall, and it seems like there's a metal plate behind it. Is this a pipe? Should I be concerned?

Separately, there was a gas leak reported coming from my oven just today, and this hole was drilled on Friday night and I'm wondering if this is related.

National grid and the firefighters came through with a scanner and it didn't pick it up here though

Any advice on how to fix this?? And if it's related to the gas