PHILADELPHIA - Motorists on I-95 are experiencing major delays after a vehicle caught fire in the southbound lanes of the highway near Center City.FOX 29's Bob Kelly reports a minivan went up in flames near the Vine Street Expressway exit overnight.The fire caused authorities to shut down the highway while an investigation was underway.All traffic was diverted onto the Vine Street Expressway with delays beginning back at Bridge Street.Bob Kelly reports delays of more than an hour as a result of the fire and closure.AdvertisementThere is no word on any injuries related to the fire at this time.___For the latest local news, sports and weather, download the FOX 29 News app.DOWNLOAD: FOX 29 NEWS APP.