Spain's airport authority says a wild boar that broke through a perimeter fence at Madrid's international airport caused runways to be shut briefly and two landings to be delayed.

The beast set off security alarms late Friday and when cameras focused on the spot, operators observed it turning around and loping off through the hole it had made.

The incident happened 100 meters (330 feet) from the nearest stretch of runway. It delayed an incoming flight from London 20 minutes and a domestic flight from A Coruna 10 minutes, the airport authority's statement said Saturday.

Newspaper El Pais reported the captain aboard Iberia flight 3179 inbound from London told passengers an animal had "surprisingly" forced him to abort a landing approach.

The hole was repaired later.