Three men have been arrested on suspicion of conspiring to produce amphetamine after police conducted a drugs raid in Luton on Monday.
Officers wearing protective hazardous materials (Hazmat) suits searched the property in Meyrick Avenue shortly after 5pm and a number of packages containing chemicals were seized.
Three men, aged 30, 32 and 38, were arrested on suspicion of conspiracy to produce a class B drug.
The seized items will be forensically examined over the next few weeks.
The Ambulance Service also attended to assist with any decontamination issues, however were not needed.
All three men are currently in custody at Luton Police Station.