At least nine people were killed and 300 others injured in the second wave of explosions related to electronic devices in Lebanon in two days, the Health Ministry in Beirut said on Wednesday in an update to an earlier report. A new wave of blasts was heard across Beirut’s southern suburbs and southern Lebanon earlier on Wednesday, witnesses in the area told dpa. A source in the pro-Iranian Lebanese militia Hezbollah said wireless devices like walkie-talkies had exploded. A Lebanese security source confirmed that it was walkie-talkies that had exploded, some of them in cars and some of which we…