04/28/2015 17:29 EDT | Updated 06/28/2015 01:12 EDT

Canadian songwriter Joni Mitchell unresponsive in a coma: TMZ report

LOS ANGELES, - Canadian songwriting legend Joni Mitchell is in a coma and unresponsive, according to TMZ.The gossip website reported Tuesday that Mitchell was in hospital with "no immediate prospects for getting better."TMZ reports that Mitchell's longtime friend Leslie Morris filed legal documents to obtain "conservatorship" over the Saskatchewan-raised songwriter, because no other close relatives were available.The 71-year-old Mitchell was admitted into intensive care last month after being found unconscious in her home.The "Big Yellow Taxi" songwriter is a seven-time Grammy winner and a member of the Rock and Roll Hall of Fame.