Dogs play menace on Goa Airport !

A couple of flights bound to Goa from Mumbai were delayed by atleast 20 minutes yesterday on 11th Feb 05 as some stray dogs played menace on the Dabolim, Goa Airport runway. It was 7.20 am in the morning and the Jet Airways flight 9W-479 Mumbai-Goa had started descending to the runway. Just before the flight was approaching the runway, the pilot noticed something on the runway and took off only to be informed by the ATC that there were some dogs running on the runway. The flight circled Goa for around 20 minutes before the officials managed to run those dogs away and the flight carrying 175 passengers managed to land around 7:50 am.

Who is to be blamed for it and what if the flight had approached the runway ? Is anyone there to answer the same ?