The White House is dismissing as not credible a Libyan proposal for an immediate cease-fire in its fight with the rebels.
Deputy national security adviser Ben Rhodes says such offers must be backed up by action. He says the Libyan government isn't complying with a U.N. resolution that authorized a military operation to protect the Libyan people from forces loyal to Moammar Gadhafi.
Rhodes spoke in France, where President Barack Obama is attending an international summit. He said the effort to drive Gadhafi from power will continue.
Spain said Thursday that it had received a message from Libya's prime minister offering an immediate cease-fire. Spain said it supports the European Union's position, which is that any cease-fire must be credible, verifiable and include all Libyan troops returning to their barracks.