Lindsay Lohan with her father, Michael.

Lindsay Lohan's father has taken a televised paternity test to find out if he has another daughter.

The Liz & Dick star's father, Michael Lohan, has appeared on US chat show The Trisha Goddard Show to find out whether 17-year-old Ashley Horn is the actress' half-sister.

Michael, 52, - who has four children with ex-wife Dina Lohan including his 26-year-old actress daughter and is currently expecting a baby with his 29-year-old girlfriend Kate Major - has allegedly been avoiding taking the test for four years and, according to gossip website RadarOnline, he said he felt sick after giving a sample of his DNA on the show.

Despite her mother, Kristi Horn, insisting she find out for certain if Lohan is her father, Ashley told the show: "I don't want to be part of the Lohan trainwreck."

She also attacked Lohan for refusing to acknowledge her in the past.

"What gives you the right to tell me that the kids have a right to disown me. What made you say that to me? How can you keep lying?"

Lindsay cut Lohan out of her own life after he tried to stage an intervention to get her to return to rehab last month.

The troubled starlet was said to have been pursuing a restraining order to stop her father from constantly interfering in her life but so far no legal documents have been filed.

The West Australian

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