More than three weeks have passed since Malaysia Airlines' Flight 370 went missing, and still no solid evidence leading to its disappearance has surfaced.

On Monday, even more objects found floating in the Indian Ocean — at first dubbed the most promising lead in the search — were ruled out as garbage. They turned out to be fishing equipment with no ties to the missing flight. This means no wreckage has been found from the plane, and authorities are now pinning their focus on the aircraft’s black box.

To help with these efforts, the United States has sent a pinger locator to help find the box. It will be attached to Australia’s Ocean Shield ship, equipped for the roughest of waters. However, the locator only covers about three miles an hour, so it can’t be best utilized until wreckage from the plane is found.

As the search continues, the families of those aboard MH370 are growing increasingly upset. Relatives are desperate for evidence and closure.

"If this mystery is solvable, we will solve it," Australian Prime Minister Tony Abbott said.

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