Authorities have determined that arson was the cause of a massive fire that closed a vital section of a Los Angeles freeway indefinitely. The fire erupted in two storage lots under Interstate 10, causing significant damage to the freeway. It is still unclear how long repairs will take, but officials have compared the situation to the recovery efforts after the 1994 Northridge earthquake. The closure is expected to have far-reaching impacts on traffic, including potentially slowing the transport of goods from the ports of LA and Long Beach. Homeless residents living under the freeway were brought to shelters, and investigations into the arson are ongoing.