Tesla deliveries dropped to the lowest number in nearly three years — at a time when some key rivals are seeing growth.

Shares of Tesla fell more than 2% on Wednesday as the company recorded a bigger-than-expected drop in sales in the January-March period.

Deliveries of Elon Musk's Tesla vehicles dropped about 13% compared to a year ago, according to a new release from the company. The decline comes amid criticism of Musk and increased competition. On Wednesday,

Investors appear more concerned than analysts, as the stock has dropped much more than delivery estimates this year.

Tesla shares fell Wednesday after the electric vehicle maker's first-quarter deliveries came in below analysts' expectations.

The EV maker’s first-quarter deliveries fell 13 percent year-over-year as CEO Elon Musk led efforts to slash the federal government.