An explosion in the Kachhi district of Balochistan occurred on Monday, leaving at least one injured, the police said.
The explosives were placed on a roadside, the police informed the media.
Balochistan has been under constant terror attacks recently with several incidents taking place in the province.
Recently, at least 18 people were injured after a remote-control bomb detonated on a railway track in Bolan, forcing the train's engine and seven carriages off the track.
Railway authorities said that the injured had been shifted to Combined Military Hospital (CMH), Sibi.
The Jaffer Express train was travelling from Machh to Sibi, when the blast occurred, local authorities said.
"A relief train was dispatched from Sibi to rescue passengers of the train and bring them to Sibi safely. Passengers on the Jaffer Express coming from Peshawar to Machh were stopped at Sibi and are now being brought to Quetta via buses," they added.
According to Deputy Commissioner Kachhi Agha Samiullah, the blast was carried out by a remote-control device.
On the other hand, the carriages of the derailed train are being lifted from the railway track.
In the annual report issued by the Centre for Research & Security Studies (CRSS), Balochistan suffered from 110 attacks last year, becoming the second most vulnerable province in the country.
Over 250 people lost their lives in terrorist attacks and counter-attacks, whereas over 200 sustained serious injuries in the province.
The last month of the year witnessed over two dozen attacks in quick succession, and that became one-fourth of the total fatalities that occurred in Balochistan, a province which has just 6% of the country's population.
According to reports, the Balochistan Liberation Army (BLA) and Baloch Nationalist Army (BNA), the terrorist organisations, are mainly involved in terror incidents in the area-wise largest province of the country. In Balochistan, at least 14 major attacks took place mostly on security forces targets.
Security forces remained the primary target of terrorist attacks in the province.
A district and sessions court in Islamabad reserved its verdict in case today
PML-N supremo calls for accountability of those behind his ouster
US diplomat Thomas West concludes 'productive' Pakistan visit
"A cache of weapons and explosives was also recovered during the operation," says military’s media wing
SPB directs banks to keep designated branches operational on weekend from 9am to 2pm
Development comes after IPP's Jahangir Tareen meets PML-N President Shehbaz Sharif at his Lahore residence