In 2007 the tournament was hosted by the West Indies and expanded to sixteen teams.[35] Following Pakistan's upset loss to World Cup debutants Ireland in the group stage, Pakistani coach Bob Woolmer was found dead in his hotel room.[36] Jamaican police had initially launched a murder investigation into Woolmer's death but later confirmed that he died of heart failure.[37] Australia defeated Sri Lanka in the final by 53 runs (D/L) in farcical light conditions, and extended their undefeated run in the World Cup to 29 matches and winning three straight championships.[38]