Supply shortages, logistics bottlenecks and rising costs are hitting Tesla as it rapidly ramps up production of its electric cars.

While the problems have improved in recent months, they remain immediate challenges, Tesla said in a financial update for investors.

Revenue was lower than expected in the three months ending in September, as car sales fell short of expectations.

But at $21.45bn (£19.12bn), it remained more than 50% higher than a year ago.

Tesla, led by billionaire Elon Musk, has been growing aggressively in recent years, opening new factories in the US, China and Germany and boosting output.

The company delivered 343,000 cars in the quarter – a record that was up more than 40% from the same period last year.

The firm produced more cars than were sold, raising fears that demand may be slowing, as rising prices, higher borrowing costs and a major economic slowdown in the key China market discourage buyers.

Mr Musk conceded there was weakness in China but beat back suggestions that demand was cooling.

When Tesla shared the delivery figures earlier this month, the company said the gap was due to difficulty finding vehicles to transport cars to customers.