MEXICO CITY (CNN) -- Attackers shot a mayor-elect at least five times at a veterinary clinic in a Mexican border state Friday night, officials said.

Ricardo Solis Manriquez was in critical condition at a local hospital after one of the bullets hit him in the head, said Carlos Gonzalez Estrada, a spokesman for the attorney general's office in Chihuahua.
Solis, the mayor-elect of the town of Gran Morelos, was scheduled to take office October 9.
The shooting was the latest in a string of attacks against elected officials in Mexico, where at least four mayors have been killed in the past two months.
A leading gubernatorial candidate also was killed in late June.
On Thursday, authorities said gunmen killed Prisciliano Rodriguez Salinas, the mayor of Doctor Gonzalez, a small town in the border state of Nuevo Leon.
Political parties in Mexico were quick to condemn the violence.
“Both events, the latest in a chain of episodes of violence that threaten to destabilize the rule of law in many cities of the country, cannot go unpunished and demand an immediate response,” said Hortensia Aragon, general secretary of the left-wing Party of the Democratic Revolution.