Lindsay Lohan prompts union safety check on 'Liz & Dick' set

Two Hollywood unions are scrutinizing worker safety and welfare on Lindsay Lohan's TV movie "Liz & Dick" after the actress tweeted that she was exhausted because of long production days, The Associated Press reports.

Larry A. Thompson, producer of the Lifetime movie starring Lohan as Elizabeth Taylor, said that no violations were found in one union's review.

The Screen Actors Guild-American Federation of Television and Radio Artists confirmed its representatives visited the production. It said it "will continue to visit" to enforce guild rules.

"We have spoken with representatives from the company, and they are fully aware of their contractual obligations. We will ensure that all applicable penalties will be paid," the guild said in a statement.

IATSE, the stage employees union, said it's keeping a watchful eye on the production's working conditions.

Lohan was treated last week by paramedics for exhaustion and dehydration. News reports that two crew members also sought treatment for exhaustion were incorrect, said Stan Rosenfield, Thompson's spokesman.