Legislator Tsang Kin-shing's plan to dismantle the lighthouse on the islands met another obstacle yesterday. Speaking at last night's candlelight vigil, Mr Tsang said the company he was dealing with had suddenly increased the rent of the two ships - a cargo vessel and a fishing boat - by $120,000 each. On top of that, the Joint Action in Defence of the Diaoyu Islands had also been asked to pay another $5.6 million in deposit. The company had originally asked for $800,000 for diesel only. Mr Tsang said the group, which depends on the Action Committee in Defence of the Diaoyu Islands for funding, could not afford the new charges. According to the committee's Au Pak-kuen, public donations have reached $1.27 million, including the $470,000 collected at Sunday's rally. But the rally and yesterday's vigil have already cost more than $400,000. Mr Tsang and some members of the joint action group will look at hiring boats from Taiwan when they join Taiwan's rally on Saturday. Mr Au said the group had decided the mainland Chinese flag and the Kuomintang flag will be hoisted on board the boats, along with yellow banners bearing the slogan: 'The Diaoyu Islands belong to China'.