Roadside bombings across Afghanistan killed 4 people on Thursday as officials reported that a NATO soldier died in a helicopter crash in Kandahar the previous day, AP reported. The crash, in which 15 coalition service members were injured, happened after the helicopter accidentally struck a communications antenna on Wednesday, an Afghan official said. In northern Jawzjan province, a roadside bomb hit the car of the intelligence chief of Aqcha district on Thursday morning, police officer Faqir Mohammad Jawzjani said. The explosion killed the district chief, Manzurullha, and his bodyguard, and wounded three other officials who were travelling with them, Jawzjani said. Also on Thursday, two roadside bombings minutes apart killed an Afghan policeman and wounded four others in the city of Kandahar, said police officer Shamsullha, who also uses one name. The first explosion struck a police car as it drove down a street, killing one officer and wounding two. Then, as other policemen who were nearby rushed to the site of the blast, a second explosion went off, wounding two more policemen, said Shamsullha. No one immediately claimed responsibility for the attacks Thursday.