Stadium lights went out in the second quarter during the game between the Pittsburgh Steelers and the San Francisco 49ers at Candlestick Park on Dec. 19.
As the lights went out at Candlestick Park before and during Monday night's San Francisco 49ers game, police were also concerned with a threat of an explosive device, according to the San Jose Mercury News.
The SFPD told the Merc that just before kick-off they got a call that was a bomb threat. Police fanned out, found no credible threat, and the game was not affected.
The game was initially delayed due to what is apparently a blown transformer near the stadium. ESPN cameras caught a bright, blue-ish explosion as they took an aerial, pre-game shot of the field.
The 49ers defeated the Pittsburgh Steelers 20-3.