The Washington Metropolitan Area Transit Authority (WMATA) increased security at rail stations, on trains and buses as a result of Sunday's alert level being raised to orange in Washington, D.C.
The increased security is a result of the Department of Homeland Security's issuance of an orange alert for financial institutions in the Washington, D.C., area.
Safety measures being implemented include deployment of special response teams and explosive detection canine teams to conduct sweeps of stations and trains.
WMATA is also closing station restrooms and increasing frequency of announcements on trains and rail stations asking customers to be watchful of suspicious activity or packages.
"We are taking precautionary measures to assure our customers that we are doing everything that we can to make sure they can use our system without incident," said Metro Transit Police Chief Polly Hanson.
Other areas on orange alert include specific financial institutions in New York and New Jersey.