The pilots cited a fuel shortage when they requested permission to land in Malta Monday, Di-Ve.com, Malta's Web portal, reported.
The military planes were held at Malta International Airport and the pilots were detained for questioning, officials said.
Maltese officials also said two French-registered civilian helicopters landed Monday, one with three people and the other with four. The passengers said they were French, Di-Ve.com reported.
Sources told the Web site the helicopter passengers "escaped from Libya with no official clearance."