UPDATE: Braintree Police have identified the motorcycle operator who died Sunday night as Clovis Dossantos, 26 of Braintree. Chief Russell Jenkins said that he believes Dossanto's family lives in Brazil and that he has no family in this area.

The accident remains under investigation.

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The 26-year-old Braintree man who crashed his motorcycle in the Highlands neighborhood Sunday night died at the hospital.

Speed may have been a factor in the accident and Braintree's Traffic Division is investigating, Police Chief Russell Jenkins said in a statement.

The man's name was not released pending notification of his family. Following the crash, he was brought to South Shore Hospital with serious injuries and later pronounced dead.

Police responded to the scene shortly after 8 p.m. The operator was heading south on Washington Street, lost control and crashed near Wampatuck Road. Witnesses initially identified speed as a likely factor, Jenkins said.