At least four people were killed in a border flare- up Friday along Bangladesh's northwestern frontier with India, officials said according to DPA. The four included two soldiers of the Indian Border Security Force (BSF). The other victims in the latest exchange of gunfire near the Chapai-Nawabganj district were a Bangladeshi border guard and a civilian living on the border belt. Both sides have blamed cross-border smugglers for inciting the bloody skirmish.