The Federal Aviation Administration said on Tuesday it will bar U.S. airlines from operating in Haiti for 30 days after three commercial jetliners were struck by gunfire on Monday. The FBI said separately it was investigating the incidents and working with law enforcement partners.

A Spirit Airlines flight from Florida was damaged by gunfire en route to Haiti and diverted to the neighboring country of the Dominican Republic, the airline said.

Boeing has agreed to pay Spirit AeroSystems up to $350 million in advance to keep producing products for it as the fuselage supplier works through a liquidity crunch. The jet maker said Tuesday that the advance payments are intended to help Spirit address high levels of inventory and lower operational cash flows.

By David Shepardson and Allison Lampert (Reuters) -Spirit AeroSystems said Tuesday that planemaker Boeing will pay up to $350 million in advance payments to the firm, providing the struggling supplier a lifeline as it continues to burn cash after four consecutive years of losses.

Spirit AeroSystems said on Tuesday that Boeing will pay a total of up to $350 million in advance payments to the firm, providing the struggling supplier a lifeline as it continues to burn cash after four consecutive years of losses.