Harare - An explosive device hit the security wall of Zimbabwe finance minister Tendai Biti's home in an attempted bombing on Sunday but caused no damage, a party spokesperson said.
"An unidentified object was thrown at Honourable Biti house and hit the security wall," Nelson Chamisa, organising secretary for the Movement for Democratic Change (MDC) told AFP.
"I am told the explosion was loud and caused some discomfort among residents in the neighbourhood. We are still trying to ascertain the circumstances," he added.
The incident at Biti's home in the Grange suburb came a week after police detained 12 MDC supporters accused of killing a police officer.
The police could not be reached for comment.
Chamisa said a police guard was on duty at the time of the incident.
Biti, a top aide of Prime Minister Morgan Tsvangirai and firebrand critic of President Robert Mugabe's economic policies, was appointed finance minister in the coalition government charged with reviving the moribund economy.
He has been accused by Mugabe and members of his party of refusing to increase the paltry salaries of civil servants and hanging on to a loan meant to finance struggling business.