A day after saying an ad highlighting climate change was too political for world leaders gathering in Brisbane for a major economic summit, local airport authorities say they have also rejected an advertisement highlighting corruption problems.

Brisbane Airport Corp. confirmed Monday that a World Wildlife Fund ad asking leaders of wealthy and developing countries to put climate change on the agenda of their G20 summit next week had been banned because it had "political intent."

Airport management revealed Tuesday that an ad proposed by global anti-corruption group Transparency International had also been banned on the same basis, even though fighting corruption features prominently on the G20 agenda.

Airport spokeswoman Leonie Vandeven said the two ads were the only G-20-related advertising to be banned.