IDYLLWILD, Calif. (AP) — Authorities in Southern California say a 51-year-old woman has been arrested after her 2-year-old granddaughter drank tea with methamphetamine in it.

A Riverside County sheriff’s statement says the toddler’s mother called authorities Monday saying the child had not slept and was talking rapidly, scratching and couldn’t sit still.

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At a hospital, it was determined she had meth in her system.

Investigators said the grandmother, Cynthia Watson, made a cup of tea the night before and put meth in it ‘‘to get herself high.’’ The girl apparently drank it when the cup was unattended.

Watson, who was visiting from Oregon, was held on suspicion of child endangerment on $35,000 bail. She’s expected in court Wednesday. It wasn’t immediately known if she has a lawyer.

The toddler is expected to make a full recovery.