The House of Representatives says it plans to summon Foreign Minister Marty Natalegawa to provide an explanation about environmental group Greenpeace's presence in Indonesia.

National Awakening Party (PKB) lawmaker Effendy Choirie, who sits on House Commission I for security and foreign affairs, told SCTV on Tuesday that Greenpeace did Indonesia more harm than good. "We need to know what Greenpeace's real motivations are," Effendy said.

Greenpeace has been involved in a high-profile battle with Asia Pulp and Paper (APP) over what is alleges are its destructive environmental practices.

In a separate interview, United Development Party (PPP) lawmaker Achmad Muqowam, asked why Greenpeace had remained silent over the source of their funding.

"It is as if Greenpeace is playing hide and seek. They said they didn't have any funding sources but later it was revealed that they did. It proves that the NGO has a hidden agenda," Muqowam claimed.

Earlier this month, Greenpeace Indonesia defended itself after religious groups called for the environmental group to be investigated for allegedly receiving money from an overseas lottery scheme that funds charities. Lotteries, whether for charitable purposes or otherwise, are illegal in Indonesia.

Religious organizations including the Indonesian Council of Ulema (MUI) and the Indonesian Bishops Conference (KWI) have demanded that the group be investigated based on reports that it had received 7 million euros ($10 million) from the Netherlands lottery.

Joko Arif, a Greenpeace Indonesia campaigner, clarified that his office had separate finances from the Netherlands branch, which receives funds from that country's National Postcode Lottery. That scheme also supports various other causes such as the UNHCR's refugee program in Sudan.

"The money accepted by Greenpeace Netherlands must be spent in that country, while Greenpeace Indonesia raises funds here and must spend them here too," Joko said.