Amy Winehouse's Funeral & Cremation Scheduled Today In London

Kelly Osbourne, centre right, arrives at Golders Green Crematorium for the funeral ceremony of British singer Amy Winehouse, north London, Tuesday, July 26, 2011. Winehouse, who had battled alcohol and drug addiction, was found dead Saturday at her London home. She was 27. (AP Photo/Joel Ryan)

Amy Winehouse's funeral took place today at London's Edgewarebury Cemetery. She will reportedly be cremated following the service, according to ABC News.

The cause of death is still undetermined, and toxicology test results are expected in two to four weeks.

Reports indicate that her death may have been respiratory-related.

"She may have had asthma and emphysema because of her smoking," said Dr. Eric Braverman, an addiction specialist and author of the book "The Edge Effect." "From that, you can have a terrible respiratory arrest. You can have a seizure. Your lungs can choke off your trachea. It happens in asthmatics a lot."

Winehouse's father revealed to reporters in 2008 that she had been diagnosed with early-stage emphysema. Her battle with eating disorders may have also contributed to her death.

"You can also suffer cardiac arrhythmia from dieting and not eating properly," Braverman said. "Even panic attacks in her state can constrict the lungs and bring on death."

Her official cause of death will be released in October.