At least three people were killed and many others injured after a blast hit a campaign office of Afghan President Ashraf Ghani in Kandahar city, according to police official on Wednesday.

An explosive device was planted on a wall of the campaign office, which went off on Tuesday evening, an official said.

Without providing more details, the official said that an investigation had been initiated into the incident.

No one has claimed responsibility for the explosion.

This comes ahead of Afghanistan’s presidential election scheduled to be held on September 28. President Ashraf Ghani is seeking his second term.

This is the second attack on Ghani’s election campaign over the past week.

On September 17, 26 people were killed and over 40 others injured in the blast that took place in Charikar city, 55 km north of Kabul.

Recently, Afghanistan has been the victim of many terror attacks in which several people lost their lives.

(With agencies inputs)