Read more: 'They want us dead, they want us silenced, but we are still standing'
Sarabia had worked as a crime reporter at Tabasco Hoy for the past 15 years. Hector Tapia, the paper's editorial director, wrote on Twitter, "We deeply regret her death and we sympathize with her family."
The city of Huimanguillo, in southeast Mexico, borders the state of Veracruz, where a number of people have been killed in connection with fuel smuggling in recent months.
A deadly jobSarabia is the sixth journalist to be killed in Mexico this year; last year 10 journalists were gunned down. The organization Reporters Without Borders ranks Mexico the third most dangerous country in the world for reporters, behind Afghanistan and Syria.
Read more: Opinion: Mexico is a country to despair over
Tabasco Hoy announced a reward for information leading to Sarabia's killers and asked, "Six journalists assassinated; most killers unpunished. Security?"
More than 100 journalists, many reporting on drug cartels and police corruption, have been killed in Mexico since 2000. Most perpetrators go unpunished.
js/msh (AFP, epd)
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