Security agencies are looking for a gang believed to be al Shabaab terrorists that raided a construction site in Balambala, Garissa county.
The gang which drove into the yard run by a Chinese construction company was armed with rifles.
Police said the incident happened on Tuesday morning after the suspected Shabaab terrorist ordered all guards who were present to lie down.
The workers are constructing the Lapset corridor to connect Lamu to Garissa, Isiolo, Ethiopia and to South Sudan.
The workers told police five men armed with firearms drove into the yard and ordered all the guards on duty to lie down.
They then inspected the site and stole two hydraulic motor vehicle jerks and 52 litres of diesel before driving off.
No injuries were reported in the incident.
More security officials have been sent to the area to pursue the gang which drove towards nearby Boni Forest.
The site is among those being used in the construction of the Lamu Port-South Sudan-Ethiopia-Transport road.
The LAPSSET Corridor Programme is Eastern Africa's largest and most ambitious infrastructure project bringing together Kenya, Ethiopia and South Sudan.
The terrorists are targeting projects including the Lapsset port and road.
It is not the first time the gang attacks the project, which has affected construction at large.
The Chinese company is constructing the Bura-Garissa road connecting Tana River and Kilifi counties.
The construction comprises a 257 km Lamu-Ijara-Garissa section, which is part of the Lapsset project.
Also, the 113 km Hindi-Bodhei-Basuba-Kiunga section and the 83km Ijara-Sangailu-Hulugho section forms part of the project.
Local police officials said they had deployed more personnel to pursue the gang operating in the expansive Boni Forest.
