DUBAI, United Arab Emirates (AP) - Qatar has banned contractors from leaving the small, oil-rich country as it carries out a probe into how heavy rains damaged buildings and roadways.

An article late Friday on the state-run Qatar News Agency announced the travel ban. It said ”owners of companies, contractors and consulting engineers’ would be banned from traveling abroad until the end of the probe.

A year’s worth of rain on Wednesday deluged Doha’s Hamad International Airport, the home of Qatar Airways, pouring through at least one part of the roof. The airport cost at least $15 billion to build.

Rainwater also flooded streets and shut down some stores in Doha.

Qatar has seen a boom in construction, some derided as shoddy, ahead of hosting the 2022 FIFA World Cup.

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