The Mexican army will patrol Nuevo Laredo in the Mexican border state of Tamaulipas tomorrow as the country votes for a new president, the Interior Ministry said today in an e-mailed statement.

An explosion near the municipality’s city hall yesterday injured seven people, destroyed 11 cars and damaged the government building, according to El Universal newspaper.

To contact the reporter on this story: Ben Bain in New York at bbain2@bloomberg.net

To contact the editor responsible for this story: Sylvia Wier at swier@bloomberg.net