World Bulletin / News Desk
"A military vehicle was ambushed near Idak village of North Waziristan when the soldiers were on their way to Bannu district," a local political administration official said over the phone on condition of anonymity due to restrictions on speaking to the media.
The injured security personnel have been shifted to a military hospital in Bannu, he added.
In a separate attack in Bajaur Agency, a tribal elder Malik Farooq was killed when his vehicle was hit by a roadside bomb in Charmang area near the Afghan border on Wednesday.
Outlawed Tehreek-e-Taliban Pakistan (TTP) claimed responsibility for both attacks in a statement.
Bajaur and North Waziristan are among the seven semi-autonomous tribal regions in Pakistan, which had been a battleground between the army and the Taliban from 2008 to 2014.
According to the Pakistan army, nearly 5,000 militants have been killed in the counter-terror operations in both regions that have left more than 400 troops dead.