Elon Musk's Tesla has reported a 14% decline in vehicle deliveries in the second quarter of the year, as the electric car-maker's problems show no sign of abating. The just over 384,000 vehicles it delivered between April and June represents the second quarterly drop in a row.

Global vehicle sales fall 13.5% as the electric- vehicle maker struggles to reverse months of declining sales.

Tesla is headed for another year of shrinking sales after it posted a second straight drop in quarterly deliveries, dragged down by CEO Elon Musk's right-wing political stances and an aging vehicle line-up that has turned off some buyers.