WASHINGTON (AP) — White House Press Secretary Robert Gibbs says BP was not forthcoming about the possibility oil could leak faster as a result of the latest attempt to contain the Gulf spill.

White House Energy Adviser Carol Browner said over the weekend that cutting and capping the damaged oil riser could result in a temporary 20 percent increase in the flow, a figure Gibbs repeated Tuesday. BP has said it didn't expect a significant increase in flow from the cutting and capping plan.

Gibbs said in Tuesday's White House briefing that he was not comfortable with BP's statements. He said he did not believe the company was forthcoming on that issue. But he didn't answer directly when asked whether the White House trusts BP.

(This version CORRECTS day to Tuesday.)