Two attacks targeting a security convoy and a police station have left at least three officers dead and 20 injured in northwest Pakistan on Wednesday.
The first attack saw a security convoy ambushed in the district of Upper Dir in Khyber Pakhtunkhwa province, killing three police officers and wounding 15 others, local police official Ibrahim Khan said.
He added that security forces had returned fire and the exchange was ongoing, but did not specify if any of the fighters had been killed during the ambush.
Hours later, an explosives-filled vehicle was rammed into a police station in the city of Bannu, also in Khyber Pakhtunkhwa, wounding at least five police officers, the authority added.
The blast damaged part of the station, but no fatalities were immediately reported.
No group has immediately claimed responsibility for either attacks, but the Pakistani Taliban, known as Tehrik-e-Taliban Pakistan, or TTP, is suspected to have carried it out.
Pakistan has accused the group of operating from areas inside Afghanistan, a charge both the TTP and the Taliban-led government in Kabul deny.
The TTP is separated from Afghanistan's Taliban, but remains a close ally.

Iran, US escalate in Gulf but release of American signals path to climb down
Escalating Israeli strikes kill five people in Gaza, medics say
Indian court asks authorities to intervene if fasting activist's condition worsens
Strong earthquake rattles New Zealand's South Island, tsunami alert lifted
Canadian wildfire smoke chokes Toronto, threatens US cities
Bus accident kills six in China's Sichuan
One dead, 3 presumed dead from capsized boat in San Francisco Bay
Lebanon, Israel conclude US-brokered talks in Rome
