Sandoz opened its first foreign offices in 1964. In 1967, Sandoz merged with Wander AG (known for Ovomaltine and Isostar). Sandoz acquired the companies Delmark, Wasabröd (a Swedish manufacturer of crisp bread), and Gerber Products Company (a baby food company). On 1 November 1986, a fire broke out in a production plant storage room, which led to the Sandoz chemical spill and a large amount of pesticide being released into the upper Rhine river. This exposure killed many fish and other aquatic life. In 1995, Sandoz spun off its specialty chemicals business to form Clariant. In 1997, Clariant merged with the specialty chemicals business that was spun off from Hoechst AG in Germany.