"Police were called… to reports of a suspicious package at Embankment Gardens," a police spokesman said in a statement, adding that the ambulance and fire services were also at the scene. "Cordons and road closures have been put in place."
At the same time, a Reuters photographer said that he saw a bomb disposal robot at the scene of the incident.
The incident happened a day after the parliament was cordoned off after the reports of a suspicious substance found in a package sent to an MP's office. The police were called and two persons hospitalized as a "precaution."
In February, London police were examining a suspicious package containing white powder, which was delivered to the UK Houses of Parliament, and later found not harmful.