Two remote-controlled bombs attached to bicycles exploded one after the other on Saturday in different parts of a city in eastern Afghanistan, killing at least three people and wounding more than two dozen others, officials said.
Ghulam Aziz Ghranai, the police chief in Laghman province, said the first morning explosion occurred as vehicles were waiting to be searched at a police checkpoint on a road leading into the provincial capital of Mehtarlam.
Deputy provincial governor Edayutullah Qalanderzai said a woman, a child and an elderly man were killed and 25 others were wounded, including one Afghan policeman.
The second explosion, which wounded four other civilians, occurred inside the city about half a mile (one kilometre) from the first blast, Mr Qalanderzai said.
Mehtarlam is about 60 miles (100 kilometres) east of Kabul.