Lebanon’s Transportation and Public Works Minister Ghazi Aridi revealed Wednesday that some progress has been made in finding the plane’s body and expected positive results by early morning Thursday.

“The search will continue overnight, and we hope to have located the remains of the aircraft by Thursday morning,” Aridi told AFP.

“But the sea bottom is not flat — there are trenches,” he added. “If the wreckage is not located in one of the trenches, we’re going to be needing equipment different from what we are using now.”

“The more the weather improves the better for the search,” Aridi said, noting sunny skies on Wednesday and a calm sea.

Questions have been raised over whether the crash was caused by storms or missiles. The black black boxes will provide the answers according to Aridi.